https://www.criticalmasssystems.co.uk/ daily https://www.criticalmasssystems.co.uk/products/2kgsulphur 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/5fc3460fbd50551abf3fab8ba1170f83c311fe8d.png?v=1592819022 2kg Sulphur https://www.criticalmasssystems.co.uk/products/6040cococlaymix45l 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/bd8b6841b1e80c18aa35558c49a3315f4bab655f.jpg?v=1613131618 Ecothrive 60/40 Coco Clay Mix 45L - price includes heavy item delivery surcharge - cheaper instore! https://www.criticalmasssystems.co.uk/products/uvonairuv-80hozonegenerator 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/uvonairozonegenerator.jpg?v=1615896667 Uvonair UV-80H Ozone Generator https://www.criticalmasssystems.co.uk/products/buddy 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/0de88cb78d9327476239565d9d95cf10d36e0678.jpg?v=1592825904 Vitalink Buddy https://www.criticalmasssystems.co.uk/products/vitalinkmax 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/51ff547800bd3b3e0b73ba4f0dec20e7cbc7e30c.jpg?v=1592825914 Vitalink Max https://www.criticalmasssystems.co.uk/products/vitalinkfulvic 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/13ae7da39295c21e12070de29281b04705d6ce09.jpg?v=1592826623 Vitalink Fulvic https://www.criticalmasssystems.co.uk/products/vitalinkfoliar 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/246e6b226a49a321873f791561546904ddbf92f8.jpg?v=1592827745 Vitalink Foliar https://www.criticalmasssystems.co.uk/products/vitalinkplantstart 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/f90b1ce6a6901d3ee6aa0edca0934bf980128d43.jpg?v=1592827769 Vitalink Plant start https://www.criticalmasssystems.co.uk/products/vitalinkrootstimulator 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/71295a65589a93754fd90bad944e5bf7bbec71fb.jpg?v=1592829826 Vitalink Root Stimulator https://www.criticalmasssystems.co.uk/products/vitalinkcoirclassic 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/864f23349382d0744456232398e0ef4744373fcf.jpg?v=1592833382 Vitalink Coir Classic https://www.criticalmasssystems.co.uk/products/vitalinksilicon 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/f6629acfed86df76cd59fc1a2a4b82cb45d79450.jpg?v=1592834466 Vitalink Silicon Max https://www.criticalmasssystems.co.uk/products/vitalinkturbo 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/c5d14426201d2f45883fffe45f01b0811ba78c44.jpg?v=1592835505 Vitalink Turbo https://www.criticalmasssystems.co.uk/products/vitalinkearthmax 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/cfe7a1c3fd97a61a95f327b121f89e94f650f672.jpg?v=1592836030 Vitalink Earth Max https://www.criticalmasssystems.co.uk/products/vitalinkpk1314 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/8b1e7691f000e1e52586368ad4e6886b0b9de401.jpg?v=1592836893 Vitalink PK 13/14 https://www.criticalmasssystems.co.uk/products/vitalinkcalmag 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/eaaea0cbb664cdd58fa1537b006b9ee3fa770989.jpg?v=1592838394 Vitalink Cal Mag https://www.criticalmasssystems.co.uk/products/charge 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/fb3ba7d66ad915c9849fe1e086ca597cfa95c449.jpg?v=1592905292 Ecothrive Charge https://www.criticalmasssystems.co.uk/products/ecothrivebiosys 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/16dd7bb30df420692d507ca866a85944f4b6fc62.jpg?v=1613481908 Ecothrive Biosys https://www.criticalmasssystems.co.uk/products/lightwavet5 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/maxibrightlightwavet5.jpg?v=1612881408 Lightwave T5 https://www.criticalmasssystems.co.uk/products/evolutionco2kitcomplete 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/evolutionco2.jpg?v=1610031298 Evolution Co2 Kit Complete https://www.criticalmasssystems.co.uk/products/90degreeelbowconnector 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/ductingelbow.jpg?v=1612795388 90 Degree Elbow Connector https://www.criticalmasssystems.co.uk/products/8outletmanifoldmbsp 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/1bfb96f7bd5d0b79e74c0b6baec0189d2e0715f7.jpg?v=1594295154 8 Outlet Manifold M.BSP https://www.criticalmasssystems.co.uk/products/aco-9810 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/0718b02af3d182f29d06817edf72f8efcaf354cb.jpg?v=1594295185 Budget high output air pump - ACO-9810 https://www.criticalmasssystems.co.uk/products/aco-9820 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/e145d0021c4dc99e97b320fa44a06894ffc2d090.jpg?v=1594295202 Budget high output air pump - ACO-9820 https://www.criticalmasssystems.co.uk/products/adfheatsealablebag 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/67c9f247d7072dc4428abcf8bd5a320fc4940992.jpg?v=1594295206 ADF Heat Sealable Bag https://www.criticalmasssystems.co.uk/products/aeroponicpropogator 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/40siteaeroponicpropagator.jpg?v=1613742853 Aeroponic Propagator https://www.criticalmasssystems.co.uk/products/aluminiumx-weavetape75mmx45mtr 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/xweavetape75mm.jpg?v=1614169237 Aluminium X-Weave Tape 75mm x 45mtr https://www.criticalmasssystems.co.uk/products/arrowdripper 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/6e194f8bf66c1f055c983e4edffb3aa8ede74965.jpg?v=1594296770 Arrow Dripper https://www.criticalmasssystems.co.uk/products/bamboopkof120cmcanes 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/efec45f43a8d1e650aef4f67c9ea1a2e5cb3d356.png?v=1594296791 Bamboo canes - pack of 250 - 150cm long https://www.criticalmasssystems.co.uk/products/bangonphmeter 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/45f4b08a60b268a51a2e3f0035e5963cf4b9e3f4.png?v=1594296835 Bang On PH Meter https://www.criticalmasssystems.co.uk/products/baselinetray 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/38a312a540fc13dfea7301091ff85ffd541d912d.png?v=1594297008 Baseline Tray https://www.criticalmasssystems.co.uk/products/biobizzacti-vera 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/e58ae8e359d9c36923c8e1e212c071517acf74aa.png?v=1594297114 Biobizz Acti-Vera https://www.criticalmasssystems.co.uk/products/biobizzalg-a-mic 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/05c1ca1fa3ab36fa8c9b3bde754440ad4c4d5e0b.png?v=1612802189 Biobizz Alg-a-mic https://www.criticalmasssystems.co.uk/products/biobizzall-mix50l 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/091077bc68f10ce082df78a837de1c88bad158cc.png?v=1594297382 Biobizz All-Mix 50L https://www.criticalmasssystems.co.uk/products/biobizzbio-bloom 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/7d331c54106b389755eecf941660f2d58865488a.png?v=1594297472 Biobizz Bio-Bloom https://www.criticalmasssystems.co.uk/products/biobizzbio-grow 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/d63344aa830ef13ab4ba8097f01286985ac8cc6a.png?v=1594297538 Biobizz Bio-Grow https://www.criticalmasssystems.co.uk/products/biobizzbio-heaven 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/93586603102efc7ceb533556be7fe00f09d1c6cd.png?v=1594297603 Biobizz Bio-Heaven https://www.criticalmasssystems.co.uk/products/biobizzbio-phdown 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/ef0e54058b9a0925d74d5ff97ccc03e9ed7f0817.png?v=1594297660 Biobizz Bio-Ph Down https://www.criticalmasssystems.co.uk/products/biobizzbio-phup 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/f974f39d50f223e86152a8169b6cce13da8ddd3f.png?v=1594297721 Biobizz Bio-Ph Up https://www.criticalmasssystems.co.uk/products/biobizzfishmix 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/ae6c45d2fc8f6f0d5952bd5d8b55c032083b6720.png?v=1612801963 Biobizz Fish Mix https://www.criticalmasssystems.co.uk/products/biobizzlightmix50l 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/f81aec12659fc80ad0339f5a735d70d64382c8db.png?v=1594298374 Biobizz Light Mix 50L https://www.criticalmasssystems.co.uk/products/biobizzrootjuice 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/6c8da3b0f722f23096bb723bc60679abd07d82f2.png?v=1594298458 Biobizz Root Juice https://www.criticalmasssystems.co.uk/products/biobizztopmax 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/e46a52567cf2ebd8a6f5517f4f3d6923aba79fe6.png?v=1612799944 Biobizz TopMax https://www.criticalmasssystems.co.uk/products/blackandwhiteheavyduty125mu 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/80de6b731867b96309c826074d667b501b338ac5.jpg?v=1594298620 Black and White Heavy Duty 125mu https://www.criticalmasssystems.co.uk/products/blueflooddripper 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/676d2f121bf5377da38418652453023c748aa508.jpg?v=1594298674 Blue Flood Dripper https://www.criticalmasssystems.co.uk/products/bluelabtruncheonecmeter 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/9ae1b6bac861f924e77d06c006f73718dad7fa30.jpg?v=1594298765 Bluelab Truncheon EC Meter https://www.criticalmasssystems.co.uk/products/bubblegenv10 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/f826b39643456d4ced7d85f4c97432eed25fe495.jpg?v=1594298839 Bubblegen V 1.0 https://www.criticalmasssystems.co.uk/products/bucketwlid 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/b3ab060480256dd8bf91a986e568eec17efeeb29.png?v=1594298895 Bucket w/Lid https://www.criticalmasssystems.co.uk/products/budboxtents 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/a9b51325d602cb44e099dfd62299bc785c2a27a5.jpg?v=1614165336 Budbox Tents https://www.criticalmasssystems.co.uk/products/budgetfilterkit100mma1 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/4inchside.jpg?v=1714747040 RVK standard filter kit 4 inch (100mm) https://www.criticalmasssystems.co.uk/products/budgetfilterkit125mma1 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/5inchside.jpg?v=1714748168 RVK standard filter kit 5 inch (125mm) https://www.criticalmasssystems.co.uk/products/budgetfilterkit150mma1 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/6ichside.jpg?v=1714751228 RVK standard filter kit 6 inch (150mm) https://www.criticalmasssystems.co.uk/products/budgetfilterkit200mma1 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/budgetfilterkit_d8da5b94-6a27-4c13-bec0-3636ac8b6b73.jpg?v=1612784939 Budget Filter Kit 200mm A1 https://www.criticalmasssystems.co.uk/products/bufferstandard300ml 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/660c7a6a71070b1775e592e59593ebc1e1013df3.jpg?v=1594299236 Buffer Standard 300ml https://www.criticalmasssystems.co.uk/products/cableties100pk 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/738f5f6a35c0537f863b1134c1dc80791a5e56e4.jpg?v=1594299247 Cable Ties 100pk https://www.criticalmasssystems.co.uk/products/cannaaquaab 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/3ab921f63bcb6a882e5802475f32098d90dae791.jpg?v=1594299408 Canna Aqua A&B https://www.criticalmasssystems.co.uk/products/cannaboost 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/cannaboost2.jpg?v=1612527969 Canna Boost Accelerator https://www.criticalmasssystems.co.uk/products/cannacalmag 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/e54ede248b3b9a31b407e782d42761f060bce760.jpg?v=1594299655 Canna Cal Mag https://www.criticalmasssystems.co.uk/products/cannacannazym 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/9a31a474ca6aa47a388d6e3471a7728999ff4c14.jpg?v=1594299706 Canna Cannazym https://www.criticalmasssystems.co.uk/products/cannacocoab 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/6cd5af9fce4b1db0a3afaaf88aaf76ce92d17174.jpg?v=1594299818 Canna Coco A&B https://www.criticalmasssystems.co.uk/products/caanacocoproplus 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/cannacocopro.jpg?v=1612798805 Canna Coco Pro Plus https://www.criticalmasssystems.co.uk/products/hydro 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/ab1671c8d12e6dacffc1801dafc4444ea0ee06db.png?v=1594300278 Canna Hydro https://www.criticalmasssystems.co.uk/products/cannapk1314 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/28c4bb154d75abc5bb24529eee5ffe3f9c088bf4.jpg?v=1594300366 Canna PK 13/14 https://www.criticalmasssystems.co.uk/products/caanarhizotonic 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/2aa84c0ce7c322fa0c78100053863309b558f7bc.jpg?v=1594300427 Canna Rhizotonic https://www.criticalmasssystems.co.uk/products/cannastart 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/cannastart.jpg?v=1613481362 Canna Start https://www.criticalmasssystems.co.uk/products/cannaterra 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/c5ce29055286ef6462a8f7fbecde39e7670cfb76.jpg?v=1594300543 Canna Terra https://www.criticalmasssystems.co.uk/products/cocoab 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/721c55e1069eee859c2d37736986d06eb422646e.png?v=1594302100 Buddhas Tree Coco A & B https://www.criticalmasssystems.co.uk/products/essentialsbuffersolution 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/04cf34cda36c67465feb0e0a4e23edfed7c0fdbd.jpg?v=1594303063 Essentials Buffer Solution https://www.criticalmasssystems.co.uk/products/eccalibrationfluid 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/41ef7192dc5e26c710f235db9f08acffa2f9a51d.jpg?v=1594303102 EC Calibration Fluid https://www.criticalmasssystems.co.uk/products/essentialscfcalibrationfluid 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/8eb348449c6a086788a30afa7568bd30c92841eb.jpg?v=1594303123 Essentials CF Calibration Fluid https://www.criticalmasssystems.co.uk/products/essentialsecmeter 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/514727dd30e333358c13bc1313c103c6df77160d.png?v=1594303229 Essentials EC Meter https://www.criticalmasssystems.co.uk/products/essentialsphmeter 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/115ed96830c78b465f540e8bd7278feb4436b4eb.png?v=1594303391 Essentials PH Meter https://www.criticalmasssystems.co.uk/products/essentialsphmeterstore30ml 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/fbd8f9800e9895238cf6a542454d815312f5b024.jpg?v=1594303478 Essentials PH Meter Store 30ml https://www.criticalmasssystems.co.uk/products/essentialsphup 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/0e6d5d57179ff321a66e53afd94c0e39db2cc05a.jpg?v=1594303567 Essentials Ph Up https://www.criticalmasssystems.co.uk/products/flowerburst 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/b7991621a8fa8279b2924cae9e586a81a4106a0b.png?v=1594305151 Buddhas Tree Flower Burst https://www.criticalmasssystems.co.uk/products/formulex 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/formulex1l.jpg?v=1613480812 Formulex https://www.criticalmasssystems.co.uk/products/guanokalongbatguano1kg 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/batguano1kg.jpg?v=1613130380 GuanoKalong Bat Guano 1kg https://www.criticalmasssystems.co.uk/products/hydrozyme 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/df707b25e43b9ab0e67e23738a7a91b45dd32742.jpg?v=1594305370 Hygrozyme https://www.criticalmasssystems.co.uk/products/kclphstorageandrefillsolution300ml 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/0f10ecdfaed074cce54644f7526b46e7232a39d7.jpg?v=1594305404 KCL PH Storage and Refill Solution 300ml https://www.criticalmasssystems.co.uk/products/liquidoxygenoxy-plus 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/ae7ea4e8c62e79431b579137eb3f9fb63f67299f.jpg?v=1594305467 Liquid Oxygen Oxy-Plus https://www.criticalmasssystems.co.uk/products/liquidsilicon 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/574b89812a8be661a1526b2d04a61cf92233b8ae.jpg?v=1594305540 Liquid Silicon https://www.criticalmasssystems.co.uk/products/metaboost 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/0e88537f2e6348289ef6a0d651acde1a417ab612.png?v=1594306748 Buddhas Tree Meta Boost https://www.criticalmasssystems.co.uk/products/neutralise 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/429c19d65762f1a4601d7826908523d6fc316f71.jpg?v=1594307488 Neutralise https://www.criticalmasssystems.co.uk/products/nitrozyme 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/12a1982eff24810a570c7761da94fdaaaa21ec93.jpg?v=1594309612 Nitrozyme https://www.criticalmasssystems.co.uk/products/phup 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/3172770e9133df0ba9e68979e19b6d111742dd63.jpg?v=1594309700 PH Up https://www.criticalmasssystems.co.uk/products/pk918 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/2f6bcd37bae5031709311c4ad9bd0988a2d7061c.png?v=1594310158 Buddhas Tree PK 9/18 https://www.criticalmasssystems.co.uk/products/plantmagicmagnecal 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/plantmagicmagnecal.jpg?v=1613746883 Plant Magic MagNe Cal https://www.criticalmasssystems.co.uk/products/pmevolutionspray 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/plantmagicevoluiton.jpg?v=1613479596 PM Evolution Spray https://www.criticalmasssystems.co.uk/products/purpinator 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/f531f42292be6a1a0e5b79d7c4000b72e0e2dab4.jpg?v=1594310421 Purpinator https://www.criticalmasssystems.co.uk/products/ripen 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/gheripengroup.jpg?v=1613494627 Ripen https://www.criticalmasssystems.co.uk/products/rootsexcelurator 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/rootsexcelurator.jpg?v=1613478719 Roots Excelurator https://www.criticalmasssystems.co.uk/products/solarpower 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/e449fc786dbf0ea711b05ca86728475dae9b5594.png?v=1594312068 Buddhas Tree Solar Green Power https://www.criticalmasssystems.co.uk/products/superthrive 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/7550d0606d2ae1fc9f55d1aac23091da27ee0d16.jpg?v=1594312108 Superthrive https://www.criticalmasssystems.co.uk/products/terpinator 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/terpinator1l.jpg?v=1613493756 Terpinator https://www.criticalmasssystems.co.uk/products/atamibloombastic 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/bloombastic.jpg?v=1613494014 Atami Bloombastic https://www.criticalmasssystems.co.uk/products/chicamasascissors 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/b4366e1a9bcefa013869caa38ec4d8bea937b381.jpg?v=1594313005 Chikamasa Scissors https://www.criticalmasssystems.co.uk/products/digitaltemphumiditymeter 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/547fdb3e53b1176897cb3cb0fd203c75566e8be2.png?v=1594313119 Digital Temp & Humidity Meter https://www.criticalmasssystems.co.uk/products/exhaleco2bags 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/ddc5c63e1226ca43d83e734531f86237b1ef48b3.png?v=1594313287 Exhale Co2 Bags https://www.criticalmasssystems.co.uk/products/handsprayer1l 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/c59a24f6117bf957b54516025042449fff6bff7c.png?v=1594313307 Hand Sprayer 1L https://www.criticalmasssystems.co.uk/products/hangingdryingnet 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/da2f8ad9c03fe771efb9b6af0c394f7e3838465d.png?v=1594313349 Hanging Drying Net https://www.criticalmasssystems.co.uk/products/measuringjug 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/538a63d1598e157d0ba8bd95585b34326820a370.png?v=1594313371 Measuring Jug https://www.criticalmasssystems.co.uk/products/nitrilegloveslrg 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/ivxx-vinyl-gloveswhite.png?v=1646827950 Vinyl Gloves https://www.criticalmasssystems.co.uk/products/ona 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/onablock.png?v=1612792359 Ona https://www.criticalmasssystems.co.uk/products/onabreezefan 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/onabreezefan.jpg?v=1612791696 Ona Breeze Fan https://www.criticalmasssystems.co.uk/products/pipette5ml 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/32410491c73c6bf895eafd0a2199ff5fa09dab3b.jpg?v=1594313563 Pipette 3ml https://www.criticalmasssystems.co.uk/products/pressuresprayerpump5l 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/5lpumpupsprayer.jpg?v=1614168062 Pressure Sprayer Pump 5L https://www.criticalmasssystems.co.uk/products/secateurs 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/956671c7307b7c6248b4b84a0a54122fdf930a0c.png?v=1594313649 Secateurs https://www.criticalmasssystems.co.uk/products/silverclothtape50mmx50mtr 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/greyducttape.jpg?v=1614169313 Black/Grey Cloth Tape 50mm x 50mtr https://www.criticalmasssystems.co.uk/products/syringe 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/8092f9a2df9d9e82008228b7eb3f2e9141da7a4e.png?v=1594313721 Syringe https://www.criticalmasssystems.co.uk/products/theowaterheater 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/baf00d36b599e11a5a340ebfabdb9c83f413efcf.jpg?v=1594313939 Theo Water Heater https://www.criticalmasssystems.co.uk/products/whitetrellisnetting45mtrx15mtr 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/24491df33ae814b1ca09be1c5e0cc60ef5ad3aba.jpg?v=1594314486 White trellis Netting 4.5mtr x 1.5mtr https://www.criticalmasssystems.co.uk/products/controlfreakfrequencycontroller 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/76f9f2be88576503e9e9238d0873bacd26b92f2c.png?v=1594314566 Control Freak Dynamic Frequency Controller https://www.criticalmasssystems.co.uk/products/controlfreakintelligentfancontroller5a 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/ea82f66d3d2b5756119443b97c1690302cdc03af.png?v=1594314570 Control Freak Intelligent Fan Controller 5A https://www.criticalmasssystems.co.uk/products/controlfreakntctempprobe3m 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/c4a97ae8b98a3a79095da0251110049f32bc0ea6.jpg?v=1594316184 Control Freak NTC Temp Probe 3m https://www.criticalmasssystems.co.uk/products/faranhrfloatvalve 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/34eac88618bddf97fe28bbee2fbf645c911c7925.jpg?v=1594316252 Faran HR Float Valve https://www.criticalmasssystems.co.uk/products/faranhr-15hunidifier 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/4cf553f1d67f4958a1437e3fc5d1262cf8e3dbeb.jpg?v=1594316359 Faran HR-15 Humidifier https://www.criticalmasssystems.co.uk/products/faranhr15digitalhumidistat 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/5ddca08c6dc80e46d74643102f8c9ef7733b70fc.jpg?v=1594316410 Faran HR15 Digital Humidistat https://www.criticalmasssystems.co.uk/products/mistmaker 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/3b565b86eb570a6d8bd0972e1170405c3e0dd305.jpg?v=1594316475 Mist Maker https://www.criticalmasssystems.co.uk/products/mistmakerfloat 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/aabb0d53f561ce778c70b2d72f14cdf02960a375.jpg?v=1594316492 Mist Maker Float https://www.criticalmasssystems.co.uk/products/replacementdisc 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/eaf895566f00db6f724a188e580b404c108ece7c.jpg?v=1594316533 Mist Maker Replacement Ultrasonic Discs https://www.criticalmasssystems.co.uk/products/smsfancontrollermk2 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/4e63a81bf3cf6c8215eb13f03a2907fc7b694b20.jpg?v=1594316616 SMS Twin Fan Controller 4.5A MK2 https://www.criticalmasssystems.co.uk/products/smshybridcontroller 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/9bc9966f5067edae28466e0beecfa32b3c48b1c8.jpg?v=1594316723 SMS Hybrid Controller https://www.criticalmasssystems.co.uk/products/darkpropagator 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/c9efb71b65a0f1d27e0e620f0a963a5b63383206.png?v=1594316941 Dark Propagator https://www.criticalmasssystems.co.uk/products/darkroomrevision3 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/6517aa6e2d8efcf02bf1ebd21a238ccd8fed8bc6.png?v=1594317039 Dark Room Revision 3 https://www.criticalmasssystems.co.uk/products/dualspectrum600wlamp 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/sunmaster-600w-dual-spectrum-bulb.jpg?v=1612881264 Sunmaster Dual Spectrum 600w Lamp https://www.criticalmasssystems.co.uk/products/e40lampholder 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/ef1436b5feba8f6d46e58a1246fd2c4b11c30046.jpg?v=1594317341 E40 Lamp Holder https://www.criticalmasssystems.co.uk/products/eurowingreflector 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/euroreflector_a5db310d-9398-4811-8a2c-94d960687bf0.jpg?v=1612880820 Eurowing Reflector https://www.criticalmasssystems.co.uk/products/hooks 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/d843541de09bd4800f42b7e4fb35376156eb016f.png?v=1594317417 Hooks https://www.criticalmasssystems.co.uk/products/iecextensioncable 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/6cf56b314ac849b248a819edca8f6d40863c293d.png?v=1594317449 IEC Extension Cable https://www.criticalmasssystems.co.uk/products/jackchain10mtr 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/29ed123702c7e3109b92b7410b217cb2e8dc2ad5.png?v=1594317477 Jack Chain 10mtr https://www.criticalmasssystems.co.uk/products/maxibrightprocontactor 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/maxiswitchprocontactor.jpg?v=1612803240 Maxibright Pro Contactor https://www.criticalmasssystems.co.uk/products/propagationlightmk3pl2 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/9b8f022adcaa67b39dcdcb5fc229effb0288d0e5.jpg?v=1594317909 Propagation Light MK3 PL2 https://www.criticalmasssystems.co.uk/products/ultravivideasyrollers 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/1d654073e790433d067467379c50e2f154acaaf1.png?v=1594317982 Ultra Vivid Easy Rollers https://www.criticalmasssystems.co.uk/products/ultravividroperachets 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/e174351d09aeb83efd632ab206498fa4774f1b64.png?v=1594318107 Rope Ratchets https://www.criticalmasssystems.co.uk/products/cocolite7030mix50l 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/71c6825e9fe7d7c5375075390dcad6bef431f5e4.jpg?v=1613130536 Ecothrive Coco Lite 70/30 Mix 50L https://www.criticalmasssystems.co.uk/products/cocopro50l 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/Ecothrive-Coco-Pro.webp?v=1764869205 Ecothrive Coco Pro 50L https://www.criticalmasssystems.co.uk/products/hugoblocks 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/grodanhugoblock.jpg?v=1613130209 Hugo Blocks https://www.criticalmasssystems.co.uk/products/hydrocorn45l 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/hydrocornclaypebbles.png?v=1613126819 Hydrocorn 45L https://www.criticalmasssystems.co.uk/products/rookwooldeltagrowblocks 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/grodandeltaallsizessingle.jpg?v=1613129358 Rockwool Delta Grow Blocks https://www.criticalmasssystems.co.uk/products/fortefogsmokebomb 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/f5b20df50568669b726ef6517b7d94895d12c906.png?v=1594360340 Fortefog Smoke Bomb https://www.criticalmasssystems.co.uk/products/hotboxsulphume 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/hotboxsulphume.jpg?v=1614173840 Hotbox Sulfume https://www.criticalmasssystems.co.uk/products/gardenkingscalpelpk10 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/17d349d60e560da417db367bf0d3e0eb00507e51.png?v=1594360560 Garden King Scalpel pk 10 https://www.criticalmasssystems.co.uk/products/roottheatmat 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/rootitheatmat.png?v=1613478260 Root!t Heat Mat https://www.criticalmasssystems.co.uk/products/roottthermostatforheatmat 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/rootitthermostat.jpg?v=1613477964 Root!t Thermostat For Heat Mat https://www.criticalmasssystems.co.uk/products/scalpelpackof10 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/928739e665564766c3c21a9588b1f13f4d5ae4b1.png?v=1594360879 Scalpel Pack of 10 https://www.criticalmasssystems.co.uk/products/stewartpropagator 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/heatedprop.jpg?v=1613477713 Stewart Heated Propagator https://www.criticalmasssystems.co.uk/products/tray 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/plasticgardentrays.jpg?v=1614336250 Garland Tray https://www.criticalmasssystems.co.uk/products/barbedconnector 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/8d12eeeeb851cb9fae62642eec761022317441be.jpg?v=1594361348 Barbed Connector https://www.criticalmasssystems.co.uk/products/barbedcrossconnector 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/67405884ce3934a9c93617c3daf91b4484f20829.jpg?v=1594361413 Barbed Cross Connector https://www.criticalmasssystems.co.uk/products/barbedelbow 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/2ab98f02c94c4d7940a6fa582683d25cfca07bd5.jpg?v=1594361564 Barbed Elbow https://www.criticalmasssystems.co.uk/products/barbedflowcontroltap 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/31182c3cea40330bcbe22fe6a3a084f550e3e31c.jpg?v=1594361717 Barbed Flow Control Tap https://www.criticalmasssystems.co.uk/products/barbedtee 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/6db69593ee30a865a98068461f1b349775853d22.jpg?v=1594361838 Barbed Tee https://www.criticalmasssystems.co.uk/products/dripperinsertnipple4mm 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/b08b60a898454034067888d15a40dc4cd90b0620.png?v=1594361880 Dripper Insert Nipple 4mm https://www.criticalmasssystems.co.uk/products/dripperline3mm 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/5b9d83ba70c9c91a026cea6af0be64e311050145.jpg?v=1594362053 Dripper Line 3mm https://www.criticalmasssystems.co.uk/products/greenholepunch 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/04c47d00a721878a0f99c47431f8ab1e9c6c87ab.jpg?v=1594363857 Green Hole Punch https://www.criticalmasssystems.co.uk/products/icelinerolls 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/6e5fa6e8426154d163e3a55507337c0cc216c7d6.png?v=1594364046 Iceline Rolls https://www.criticalmasssystems.co.uk/products/maxijetpumps 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/maxijet1000.jpg?v=1614334985 Maxijet Pumps https://www.criticalmasssystems.co.uk/products/mc320450 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/microjetpump.jpg?v=1614334828 Microjet pump MC320/450 - pump for NFT gro tanks https://www.criticalmasssystems.co.uk/products/nj3000foriws 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/0dc67080ed1d54c2a94208d6c941896ebdb92e34.jpg?v=1594364212 NJ3000 for IWS https://www.criticalmasssystems.co.uk/products/pipestake 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/9350a79d16e46dbd753e46bba069b46ff2ff3127.jpg?v=1594364418 Pipe Stake https://www.criticalmasssystems.co.uk/products/stopend13mm 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/49d97b82510f7220c4b5e81fb73d407df2f46700.png?v=1594364468 Stop End https://www.criticalmasssystems.co.uk/products/13mmfbsptee 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/a34078869dd118b9bad8086a99c1a090699cbb11.jpg?v=1594364595 F.BSP Tee https://www.criticalmasssystems.co.uk/products/diamondlightite125mtrx100mx125mu 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/26ed336dde92c483132a70a6bf2f2b57663d51c6.jpg?v=1594364684 Diamond Lightite 1.25mtr x 125mu https://www.criticalmasssystems.co.uk/products/floorsecurewhite4mtrx250mu 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/4148bfb7735235e8249cfbb327e21de4c0c5cac5.jpg?v=1594364816 Floor Secure White 4mtr x 250mu https://www.criticalmasssystems.co.uk/products/mylarheavyduty12m125mu 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/db352ebbf46cd814b00ee1c2366a543f26ba1da0.jpg?v=1594364856 Mylar Heavy Duty 1.2m 125mu https://www.criticalmasssystems.co.uk/products/silverwhitelightite125mtr125mu 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/db1883c3e13de4c852441daa60149f30ecc219ee.jpg?v=1594364915 Silver White Lightite 1.25mtr 125mu https://www.criticalmasssystems.co.uk/products/deliverytubeforgttank 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/nftdeliverytube.jpg?v=1614334650 Delivery Tube for NFT gro tank https://www.criticalmasssystems.co.uk/products/nftkitgt 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/c71fa10ae581a5d9de0e55553a0e5bcd8753ded2.jpg?v=1594365570 NFT Kit GT https://www.criticalmasssystems.co.uk/products/rootmassfabricpot 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/0aa59839452cb189f9b0607d140589b36ce36c1e.png?v=1594365650 Root Mass Fabric Pot https://www.criticalmasssystems.co.uk/products/roundpot 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/roundpots.jpg?v=1614334287 Round Pot https://www.criticalmasssystems.co.uk/products/saucersforpots 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/potsaucers.jpg?v=1614254894 Saucers for Pots https://www.criticalmasssystems.co.uk/products/spreadermatfornft 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/spreadermat25ft.jpg?v=1614252384 Spreader Mat for NFT https://www.criticalmasssystems.co.uk/products/squarepot 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/squarepots.jpg?v=1614252041 Square Pot https://www.criticalmasssystems.co.uk/products/waterbutt 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/10a9fcb56645517ffd00e0a538e98638701af8ce.jpg?v=1594365909 Water Butt https://www.criticalmasssystems.co.uk/products/connector 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/52df5468403aa6c0cffef09f4c2590da041483f4.jpg?v=1594366758 Connector https://www.criticalmasssystems.co.uk/products/fastclamp 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/Fast-Clamp.jpg?v=1612789906 Fast Clamp - padded collar clamp https://www.criticalmasssystems.co.uk/products/flowerfilter 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/flowerfilterbudgetcarbonfilter_b7511c77-0855-4e83-be9b-edab51f7e891.jpg?v=1612789736 Flower Filter https://www.criticalmasssystems.co.uk/products/gekkoacousticboxfan 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/7e7f8e8135408d10e54294c41a7b36b7f31f48f1.jpg?v=1594366998 Gekko Acoustic Box Fan https://www.criticalmasssystems.co.uk/products/isomax 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/isomaxacousticfan.jpg?v=1612782790 IsoMax Iso-max fans from Critical Mass Systems https://www.criticalmasssystems.co.uk/products/maxifanpedestalfan40cmdiameter 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/f0458be4e17be53f542d91a0920343f816c17702.jpg?v=1594367327 MaxiFan Pedestal Fan 40cm Diameter https://www.criticalmasssystems.co.uk/products/metalflange 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/ducttowall.jpg?v=1612788792 Metal Flange https://www.criticalmasssystems.co.uk/products/mountainairfilter 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/mounatinaircarbon.jpg?v=1612777747 Mountain Air Filter https://www.criticalmasssystems.co.uk/products/q-maxecfan 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/QmaxECventilationfan.jpg?v=1612787805 Q-Max EC Fan https://www.criticalmasssystems.co.uk/products/quickreleaseclamp 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/ductclip.png?v=1612788559 Quick Release Clamp https://www.criticalmasssystems.co.uk/products/reducer 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/ductingreducer.jpg?v=1612788274 Reducer https://www.criticalmasssystems.co.uk/products/ventsttmixedflowfan 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/ventstt100mmfan.jpg?v=1612788169 Vents TT Mixed Flow Fan https://www.criticalmasssystems.co.uk/products/y-piece 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/ductingypiece.jpg?v=1612787685 Y-Piece https://www.criticalmasssystems.co.uk/products/cellmaxgrowcubes 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/grodancellmax20l.jpg?v=1613128080 Cell Max Grow Cubes https://www.criticalmasssystems.co.uk/products/airline1m 2026-07-07T20:22:51+01:00 daily https://www.criticalmasssystems.co.uk/products/airpumpmanifold 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/9c2f53467877eb83a33f64b3a1397876f689db30.jpg?v=1595327262 Air Pump Manifold https://www.criticalmasssystems.co.uk/products/budgetairpumps 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/7c4379df8ec1a2a96ef6d01c0371eb25f446a535.jpg?v=1595327343 Budget Air Pumps https://www.criticalmasssystems.co.uk/products/plasticairmanifolds 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/994e4ab2779acfc97ebe14fef362770d085d1b4a.jpg?v=1595327418 Plastic Air Manifolds https://www.criticalmasssystems.co.uk/products/professionalsuperhighoutput24potaerationkit 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/2485cce18bc4d5beb00547bb0751bdd07085c328.jpg?v=1595349137 Professional super high output 24 pot aeration kit https://www.criticalmasssystems.co.uk/products/combiducting 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/combiducting_30c1ac7e-5d88-4e71-91f5-50122b934ade.jpg?v=1612785113 Combi Ducting https://www.criticalmasssystems.co.uk/products/phonictrapultrasilentducting 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/b6b82e056c1329f7b1ff825e224dbb6782f28fcd.jpg?v=1595501197 Sound Trap Acoustic Ducting https://www.criticalmasssystems.co.uk/products/lighthousewirelessthermostat 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/0c34b2fabb9a73728688c74af964d2e658c55252.jpg?v=1595505507 Lighthouse Wireless Thermostat https://www.criticalmasssystems.co.uk/products/killermite250ml 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/killermite.jpg?v=1614173468 Killermite 250ml https://www.criticalmasssystems.co.uk/products/premiumfiltrationkit100mm 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/premiumcarbonfilterkit.jpg?v=1612787275 Premium Filter Kit 100mm https://www.criticalmasssystems.co.uk/products/premiumfilterkit125mm 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/premiumcarbonfilterkit_a081d618-baa1-4adb-93ee-fb7de9b8f868.jpg?v=1612787324 Premium Filter Kit 125mm https://www.criticalmasssystems.co.uk/products/premiumfilterkit150mm 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/premiumcarbonfilterkit_b7c5d0ff-357f-46f2-a366-fe4bc12fa002.jpg?v=1612787406 Premium Filter Kit 150mm https://www.criticalmasssystems.co.uk/products/premiumfilterkit200mm 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/premiumcarbonfilterkit_13f48685-bbf0-4701-b283-6b9bd4acb4f1.jpg?v=1612787481 Premium Filter Kit 200mm https://www.criticalmasssystems.co.uk/products/premiumfilterkit250mm 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/premiumcarbonfilterkit_2ba86708-5e8c-40a1-a00b-d234dc8ea987.jpg?v=1612787537 Premium Filter Kit 250mm https://www.criticalmasssystems.co.uk/products/isomaxmountainairextractionkits150mm6inch 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/isomaxacousticfilterkit.jpg?v=1612783216 Isomax Mountain Air Extraction Kits 150mm (6 inch) https://www.criticalmasssystems.co.uk/products/isomaxmountainairextractionkits200mm8inch 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/isomaxacousticfilterkit_f3cf296e-51f0-4052-9b37-9a5c8404d5a4.jpg?v=1612783375 Isomax Mountain Air Extraction kits 200mm (8 inch) https://www.criticalmasssystems.co.uk/products/isomaxmountainairextractionkits250mm10inch 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/isomaxacousticfilterkit_d95a65c2-4c12-4dbf-a5ac-b8e7ec6f68f4.jpg?v=1612783420 Isomax Mountain Air Extraction Kits 250mm (10 inch) https://www.criticalmasssystems.co.uk/products/isomaxmountainairextractionkits250mm10inchhighpower 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/isomaxacousticfilterkit_d56187b3-b6a5-44ab-80c9-c41accdd9e20.jpg?v=1612783459 Isomax Mountain Air Extraction Kits 250mm (10 inch) High Power https://www.criticalmasssystems.co.uk/products/isomaxmountainairextractionkits315mm12inch 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/isomaxacousticfilterkit_54162265-82fb-43c3-8259-6d7d1a61e7cc.jpg?v=1612783488 Isomax Mountain Air Extraction Kits 315mm (12 inch) https://www.criticalmasssystems.co.uk/products/highoutputeconomy10potaerationkit 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/84875e3d2653dfe9446b84c870c900405ae77a88.jpg?v=1596263536 High output economy 10 pot aeration kit https://www.criticalmasssystems.co.uk/products/highoutputeconomy6potaerationkit 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/84875e3d2653dfe9446b84c870c900405ae77a88_d0a958c6-617e-4ad2-9ca6-97c7cfcbfb90.jpg?v=1596263539 High output economy 6 pot aeration kit https://www.criticalmasssystems.co.uk/products/professionalsuperhighoutput36potaerationkit 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/2830995995e353183807ac5d7be5c60fd7f53afc.jpg?v=1596263587 Professional super high output 36 pot aeration kit https://www.criticalmasssystems.co.uk/products/v206potproaerationkit 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/6a19ed15fe886728867c245408ff6ed93c271959.jpg?v=1596263587 V20 6 pot pro aeration kit https://www.criticalmasssystems.co.uk/products/4mmsoftirrigationpipe 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/ec5be9931adeb1c4b7d204232c4ee864069274ee.jpg?v=1596264802 4mm Soft Irrigation Pipe https://www.criticalmasssystems.co.uk/products/air-linetpiece 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/7d3d2ea93974d33bbae20f0ebc017c3fd47a6cf5.jpg?v=1596264977 Air-Line T piece https://www.criticalmasssystems.co.uk/products/bluegolfballairstone 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/de38acf6198f6179e588ca6aa2fc2e25cefa40c4.jpg?v=1596265127 Blue Golf Ball Airstone https://www.criticalmasssystems.co.uk/products/fitting13mm 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/335af1a8e12f620ffc3777c7b369978d75f92859.jpg?v=1596265281 IWS Fittings 13mm https://www.criticalmasssystems.co.uk/products/highpressurefilter 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/59e72f1d786031ebff0904daf62eebb4c60358d8.jpg?v=1596265480 High Pressure FIlter https://www.criticalmasssystems.co.uk/products/highpressureqseriespump 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/aquakingpump.jpg?v=1614174273 High Pressure Aquaking Q Series Pump https://www.criticalmasssystems.co.uk/products/iwsantisiphonvalve 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/49b8c2e8bcc3688d6ec40bce0307f98f3b760b87.jpg?v=1596265774 Anti Siphon Valve https://www.criticalmasssystems.co.uk/products/lseriesirrigationpump 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/2bad173d9fd43162c2515307c1c7773a0d78cc60.png?v=1596265816 L Series Irrigation Pump https://www.criticalmasssystems.co.uk/products/orangeholepunch 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/17640c52941febb282e261b7c39568c1eed0a94a.jpg?v=1596265969 Orange Hole Punch https://www.criticalmasssystems.co.uk/products/profitting25mm 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/4118a9ca302fa710217eabcf3d906daac6ba2aed.jpg?v=1596266038 Pro Fitting 25mm https://www.criticalmasssystems.co.uk/products/professionaldiscairstone 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/6b626429fa3538704ce64fae31e5f9d8e93e74df.jpg?v=1596266087 Professional Disc Airstone https://www.criticalmasssystems.co.uk/products/professionalhighoutputairpumps 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/2485cce18bc4d5beb00547bb0751bdd07085c328_3cc79120-034c-4f61-99ac-ba7985b9f519.jpg?v=1596266150 Professional High Output Air Pumps https://www.criticalmasssystems.co.uk/products/sealinggland 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/b008ab157f2018c22ccd47de7e0cdb795e3fa8bc.jpg?v=1596266249 Sealing Gland https://www.criticalmasssystems.co.uk/products/v20professionalairpump 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/6a19ed15fe886728867c245408ff6ed93c271959_0bbc961f-ef02-4c84-8bf0-39155cd1857f.jpg?v=1596266307 V20 Professional Air Pump https://www.criticalmasssystems.co.uk/products/nutrientchillers 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/8280356cb8834c46f3d89c7e75a640e96e56b852.jpg?v=1596269366 Nutrient Chillers https://www.criticalmasssystems.co.uk/products/dripperflexitankwithnj3000 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Autopot 9mm Aquavalve https://www.criticalmasssystems.co.uk/products/autopotflexitanks 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/23855da0c5b1e01e3baacfb330f9cec508b68f37.jpg?v=1596627194 Autopot Flexi Tanks https://www.criticalmasssystems.co.uk/products/flexitankpro 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/flexi-tank-pro.jpg?v=1613124292 Flexi Tank Pro https://www.criticalmasssystems.co.uk/products/budboxwhitexlgrowtentkit 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/budboxpro1.2x1.2.jpg?v=1614164437 Budbox White XL Grow Tent Kit https://www.criticalmasssystems.co.uk/products/wilma4pot 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/23ea920ff705bace4710dee571aaf15c03e6cb5f.jpg?v=1596791247 Wilma 4 Pot https://www.criticalmasssystems.co.uk/products/wilma8potsystem 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/30da5cb25981026f94ce574ac9ea9ca5ce03f87f.jpg?v=1596791746 Wilma 8 Pot System https://www.criticalmasssystems.co.uk/products/oxypotsingle 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/381ddf95582eec8a5c277ed1cdf9b075c85db04c.jpg?v=1596793018 Oxy Pot Single https://www.criticalmasssystems.co.uk/products/oxy-potxlsystem 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/ocypotxlandpump.jpg?v=1614274936 Oxy-Pot XL System https://www.criticalmasssystems.co.uk/products/maxifanclip-onfan 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/1640811772ff5f4096760b8acfe6c4b4aa70105a.jpg?v=1596797535 MaxiFan Clip-on Fan https://www.criticalmasssystems.co.uk/products/prem-i-air25kwoilfilledradiatorwtimer 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/lighthouse2kwradiator.jpg?v=1669044254 Lighthouse 2kw Oil Filled Radiator https://www.criticalmasssystems.co.uk/products/prem-i-airhumiditytemperaturemonitor 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/23230e83d3bf3437db01bbe93941ced2acd097f5.jpg?v=1596802054 Prem-I-Air Humidity/Temperature Monitor https://www.criticalmasssystems.co.uk/products/rootriotx24 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/rootriotx24.jpg?v=1613477506 Root Riot x24 https://www.criticalmasssystems.co.uk/products/scalpelx1 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/disposablescalpel.jpg?v=1614167756 Single Disposable Scalpel https://www.criticalmasssystems.co.uk/products/roottgel150ml 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/6059dce44b0d71dcfe54e32fffe15b0fb2af19a7.jpg?v=1596808032 Root!T Gel 150ml https://www.criticalmasssystems.co.uk/products/basicseedandcuttingstarterkit-rootriot 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/basicseedandcuttingrootriot.jpg?v=1613733845 Basic Seed and Cutting Starter Kit - Root Riot https://www.criticalmasssystems.co.uk/products/basicseedandcuttingstarterkit-rockwool 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/basicseedandcuttingrockwool.jpg?v=1613734478 Basic Seed and Cutting Starter Kit - Rockwool https://www.criticalmasssystems.co.uk/products/largeseedandcuttingstarterkit-rootriot 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/largebasicpropkitrootriot.jpg?v=1613735739 Large Seed and Cutting Starter Kit - Root Riot https://www.criticalmasssystems.co.uk/products/largeseedandcuttingstarterkit-rockwool 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/largebasicpropkitrockwool.jpg?v=1613735441 Large Seed and Cutting Starter Kit - Rockwool https://www.criticalmasssystems.co.uk/products/propagationstarterkitwitht5lightwave-rootriot 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/medpropkit1.jpg?v=1613731123 Propagation Starter Kit With T5 Lightwave - Root Riot https://www.criticalmasssystems.co.uk/products/propagationstarterkitwitht5lightwave-rockwool 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/medpropkitrockwool.jpg?v=1613733381 Propagation Starter Kit With T5 Lightwave - Rockwool https://www.criticalmasssystems.co.uk/products/largepropagationkitwitht5lightwave-rootriot 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/largepropagationkit.jpg?v=1613732101 Large Propagation Kit with T5 Lightwave - Root Riot https://www.criticalmasssystems.co.uk/products/largepropagationkitwitht5lightwave-rockwool 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/largepropkitrockwool1.jpg?v=1613732805 Large Propagation Kit with T5 Lightwave - Rockwool https://www.criticalmasssystems.co.uk/products/secretjardinpropagatortentkit-rootriot 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/1b11e287de3690b9fb9388b7d00ac7698a5b110d.jpg?v=1596812517 Secret Jardin Propagator Tent Kit - Root Riot https://www.criticalmasssystems.co.uk/products/secretjardinpropagatortentkit-rockwool 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/1b11e287de3690b9fb9388b7d00ac7698a5b110d_5cb7e83e-3544-4c2d-ad31-6fbc1a09865b.jpg?v=1596812718 Secret Jardin Propagator Tent Kit - Rockwool https://www.criticalmasssystems.co.uk/products/budboxpro15mx15mtentkit 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/budboxpro1.5mx1.5m.png?v=1614163920 Budbox Pro 1.5mx1.5m Tent Kit https://www.criticalmasssystems.co.uk/products/budboxproxxltentkit 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/budboxproxxl.png?v=1614164361 Budbox Pro XXL Tent Kit https://www.criticalmasssystems.co.uk/products/budboxpro15mx3mtentkit 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/budboxpro1.5mx3m.png?v=1614164049 Budbox Pro 1.5mx3m Tent Kit https://www.criticalmasssystems.co.uk/products/fdbrainbucket 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/9b948663e843010c4bf3c85fc9f024b89c35e053.jpg?v=1597064069 IWS F&D Brain Bucket https://www.criticalmasssystems.co.uk/products/flexi-tray 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/flexitray.jpg?v=1614245537 Flexi-Tray https://www.criticalmasssystems.co.uk/products/hgshootingpowder 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/178c5e84b4e7255c6d1617b9a73dfca9a888d13a.jpg?v=1597065916 H&G Shooting Powder https://www.criticalmasssystems.co.uk/products/ataclean 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/ataclean1l.jpg?v=1613493141 ATA Clean https://www.criticalmasssystems.co.uk/products/grodansbscuttingcubes-small 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/rockwoolsbsblocksx150.jpg?v=1613125132 Grodan SBS Cutting Cubes - Small https://www.criticalmasssystems.co.uk/products/grodansbscuttingcubes-standard 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/rockwoolcuttingblocksx77.jpg?v=1612884028 Grodan SBS Cutting Cubes - Standard https://www.criticalmasssystems.co.uk/products/grodanvitalrockwoolslabs1mtr 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/grodanvitalopen.jpg?v=1613127477 Grodan Vital Rockwool Slabs 1mtr https://www.criticalmasssystems.co.uk/products/grodangro-toprockwoolslabs-1m13m 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/grodangrotopmasterslab.png?v=1613127359 Grodan Gro-Top Rockwool Slabs - 1m & 1.3m Grodan Gro-Top Hydroponic Rockwool Grow Slabs - 1m & 1.3m Critical Mass Systems https://www.criticalmasssystems.co.uk/products/newjetpumps 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/newjetpump.jpg?v=1614245425 NewJet Pumps https://www.criticalmasssystems.co.uk/products/malebspelbow13mm 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/191b612c84a98da035bdab3cdb4e58dc79983f32.jpg?v=1597071765 Male bsp Elbow 13mm 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https://cdn.shopify.com/s/files/1/0397/1383/3127/products/78eebe91e2ad96c81bdf4e944eef6c639d55af4b.jpg?v=1597075503 Flexi Pipe 13mm https://www.criticalmasssystems.co.uk/products/phtestkits 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/333cf2a73dcbfe5192cdecf3840f45f8564c20cc.jpg?v=1597076574 pH Test Kits https://www.criticalmasssystems.co.uk/products/silverbulletroots 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/silverbulletroots.jpg?v=1614173332 Silver Bullet Roots https://www.criticalmasssystems.co.uk/products/silverbulletmist 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/silver-bullet-mist-spray.jpg?v=1614167434 Silver Bullet Mist https://www.criticalmasssystems.co.uk/products/nftmultiduct2channel180cm 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/nftmultiduct601.jpg?v=1614273628 NFT Multiduct 2 Channel 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daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/dbbbf0faaa1b7ede0e46874e4e6fe36c837fc1a7.png?v=1597153321 Garden Tie https://www.criticalmasssystems.co.uk/products/loadsta600wprocontrollableballast 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/9aaef59af4834844988a070684a2d5b3567b8d7a.jpg?v=1597153834 Loadstar 600w Pro Controllable Ballast https://www.criticalmasssystems.co.uk/products/fourfourtwopropagationtent 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/FourTwoZero-0.9-x-0.9-x-0.6.png?v=1613475622 Four Two Zero Propagation Tent https://www.criticalmasssystems.co.uk/products/fourfourtwogrowtents 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/9d9f095ca5c8aa19eea6bf800539f729d2d323f6.png?v=1597154964 Four Two Zero Grow Tents https://www.criticalmasssystems.co.uk/products/xlbudgettentkit-12mx12mx2m 2026-07-07T20:22:51+01:00 daily 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225l Flexi Tank https://www.criticalmasssystems.co.uk/products/16potautopotsystemwith220lwaterbutt 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/56b16812cfad484fcb1e814e2d47eddc3c4005c2.jpg?v=1597851392 16 Pot Autopot System With 220l Water Butt https://www.criticalmasssystems.co.uk/products/16potautopotsystemwith225lflexitank 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/29cca57f352db1d2cb6f0c9b68ed9130191a9a2e.jpg?v=1597851603 16 Pot Autopot System With 225l Flexi Tank https://www.criticalmasssystems.co.uk/products/24potautopotsystemwith350lwaterbutt 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/5c13b13dd6ea25b092581f35d3f8473a25ac813c.jpg?v=1597851943 24 Pot Autopot System With 350l Water Butt https://www.criticalmasssystems.co.uk/products/24potautopotsystemwith400lflexitank 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/27954fd7e6f9c345e721c48e73636788d4cb07f3.jpg?v=1597852134 24 Pot Autopot System With 400l Flexi Tank https://www.criticalmasssystems.co.uk/products/budboxpro24mx24mtentkit 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/budboxpro2.4x2.4.png?v=1614163755 Budbox Pro 2.4mx2.4m Tent Kit https://www.criticalmasssystems.co.uk/products/budboxlite24mx24mdigitaltentkit 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/budboxlite2.4x2.4.jpg?v=1614163001 Budbox Lite 2.4m x 2.4m Digital Tent Kit https://www.criticalmasssystems.co.uk/products/budboxlite2mx2mdigitaltentkit 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/budboxlite2x2x2.png?v=1614162843 Budbox Lite 2m x 2m Digital Tent Kit https://www.criticalmasssystems.co.uk/products/budboxlitexxl12mx24mdigitaltentkit 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/budboxlite1.2x2.4.png?v=1614161497 Budbox Lite XXL (1.2m x 2.4m) Digital Tent Kit https://www.criticalmasssystems.co.uk/products/budboxlite15mx15mdigitaltentkit 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/budboxlite1.5mx1.5m.jpg?v=1614161234 Budbox Lite 1.5m x 1.5m Digital Tent Kit https://www.criticalmasssystems.co.uk/products/budboxlite12mx12mdigitaltentkit 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/budboxlite1.2m.png?v=1614159991 Budbox Lite 1.2m x 1.2m Digital Tent Kit https://www.criticalmasssystems.co.uk/products/budboxlite1mx1mdigitaltentkit 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/budboxlite1mx1m.jpg?v=1614159555 Budbox Lite 1m x 1m Digital Tent Kit https://www.criticalmasssystems.co.uk/products/t5singletubepropagationlight 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/singlet5propagationlights.jpg?v=1612880277 T5 Single Tube Propagation Light https://www.criticalmasssystems.co.uk/products/daylightremotereflector315w 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/Main_Daylight-600W-Horizon.png?v=1612882946 Daylight Horizon Reflector 315w CDM - remote https://www.criticalmasssystems.co.uk/products/maxibrightcdmballast315wdigital 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/cdmballast_ec07711d-6eca-4fa9-8d67-7a42f8fb643a.jpg?v=1612879740 Maxibright CDM Ballast 315w digital https://www.criticalmasssystems.co.uk/products/2kwfanheater 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/lighthouse2kwheater.jpg?v=1615478663 2KW Fan Heater https://www.criticalmasssystems.co.uk/products/6040hydrococomix 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/goldlabel60_40mix.png?v=1613126658 60/40 HydroCoco Mix https://www.criticalmasssystems.co.uk/products/9mmdeliverypipe1mtr 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/ef8cb71ed0962425d99ac719dffa93af9926dd89.jpg?v=1601381279 9mm Delivery Pipe 1mtr https://www.criticalmasssystems.co.uk/products/maxibrightcdm315wfocuskit 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/maxibright-focus-remote-kit.jpg?v=1612879672 Maxibright CDM 315W Focus Kit https://www.criticalmasssystems.co.uk/products/adjust-a-wingenforcerreflector 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/adjustawingenforcerreflector.png?v=1612868557 Adjust-A-Wing Enforcer Reflector https://www.criticalmasssystems.co.uk/products/greenpower400v600wson-t 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/phillipsgreenpower600w.jpg?v=1612879168 Greenpower 400v 600w SON-T https://www.criticalmasssystems.co.uk/products/loadstar600whps 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/loadstar600wbulb.jpg?v=1612878504 Loadstar 600w HPS https://www.criticalmasssystems.co.uk/products/loadstardimmabledigitalballast 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/loadstar600wdigitalballast.jpg?v=1612878345 Loadstar Dimmable Digital Ballast https://www.criticalmasssystems.co.uk/products/maxibrightcflreflector 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/f14ef4494fca037ad32b961934efee1db031e11d.jpg?v=1601561668 Maxibright CFL Reflector https://www.criticalmasssystems.co.uk/products/sylvaniagrolux600wlamp 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/600wgroluxbulb.jpg?v=1612877276 Sylvania Grolux 600w Lamp https://www.criticalmasssystems.co.uk/products/gardentiewire 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/dd076b7af97045754de753f0af4941a514f56e6c.jpg?v=1601627737 Garden Wire Stainless https://www.criticalmasssystems.co.uk/products/overdrive 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/405be5da8ccce173be162954115d60c216e17945.jpg?v=1601627744 Overdrive https://www.criticalmasssystems.co.uk/products/zipperdoor2m 2026-07-07T20:22:51+01:00 daily https://www.criticalmasssystems.co.uk/products/rhizoblast1l 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/2696b67808847c1248b5fa6e31b7e9d9b4f05812.jpg?v=1601627761 Rhizo Blast 1L https://www.criticalmasssystems.co.uk/products/mammothp 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/mammothp.jpg?v=1613491676 Mammoth P https://www.criticalmasssystems.co.uk/products/start 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/millsstart-r.jpg?v=1613745643 Mills Start -R https://www.criticalmasssystems.co.uk/products/singleinlet13mmto5mm 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/91e50c61c7582f88cb90f442ddb0aae54efaa976.jpg?v=1601627830 Single Inlet 13mm to 5mm https://www.criticalmasssystems.co.uk/products/c4 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/millsc4.jpg?v=1613745525 Mills C4 https://www.criticalmasssystems.co.uk/products/mykos 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/ac0fc29e50eac26c3d9420eebba1c5cdac951b09.jpg?v=1601627848 Mykos https://www.criticalmasssystems.co.uk/products/trellisnetting15mtrx45mtr 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/1b5dbcab1a256c81c3ba66104e88adcfdc5bd153.jpg?v=1601627894 Trellis Netting 1.5mtr x 9mtr https://www.criticalmasssystems.co.uk/products/rockresinator 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/rockresinator.jpg?v=1613490174 Rock Resinator https://www.criticalmasssystems.co.uk/products/monosilicicacid40 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/growgenius100ml.jpg?v=1613489544 Grow Genius Mono Silicic Acid 40% 100ml bottle genius mono-silicic acid stocked by critical mass systems https://www.criticalmasssystems.co.uk/products/bluelabphpen 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/29b45b4f4717ae7cc8c80e40c739d8f21f56c184.jpg?v=1601627922 Bluelab PH Pen https://www.criticalmasssystems.co.uk/products/greenledheadtorch 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/lumigreenheadtorch.jpg?v=1614166682 Green LED Head Torch https://www.criticalmasssystems.co.uk/products/tanktapconnectorwithfilter 2026-07-07T20:22:51+01:00 daily https://www.criticalmasssystems.co.uk/products/sbplantinvigorator 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/SB-Plant-Invigorator-concentrate-500-ml.jpg?v=1614173062 SB Plant Invigorator https://www.criticalmasssystems.co.uk/products/moonshine 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/075f9e5fc0d57055c8f820aef811bbc931c25c87.jpg?v=1601627968 Moonshine https://www.criticalmasssystems.co.uk/products/iwsruntowastedripperbrain 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/a73660bfb926feb6779d0bbe3432511594c1df07.jpg?v=1601627983 IWS Run To Waste Dripper Brains https://www.criticalmasssystems.co.uk/products/24hrdigitaltimer 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/24hourdigitaltimer.jpg?v=1612804034 24hr Digital Timer https://www.criticalmasssystems.co.uk/products/spanner 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/cannaspanner.jpg?v=1610541959 Canna Spanner https://www.criticalmasssystems.co.uk/products/zeuspro600w 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/above.jpg?v=1632224716 NEW! - Lumatek Zeus Pro 2.9 µmol/J 600w LED https://www.criticalmasssystems.co.uk/products/rootriotrefills 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/root_riot_x50_a3d78757-c65c-417b-81fe-d7855f4aa61e.jpg?v=1613476918 Root Riot Refills https://www.criticalmasssystems.co.uk/products/bigbud 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/advancednutrientsbigbud.jpg?v=1613490765 Advanced Nutrients - Big Bud https://www.criticalmasssystems.co.uk/products/baselinebrain 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/b6d2a01f0ff4524b09ac9918213de981facc38d8.jpg?v=1601628051 Baseline Brain https://www.criticalmasssystems.co.uk/products/calmag 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/millscalmag.jpg?v=1613745392 Mills Cal Mag https://www.criticalmasssystems.co.uk/products/xlmodule1pot 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/ae03b68f6f5937ccf741c10bbcd5333a0efa34aa.png?v=1601628063 Autopot XL Module 1 Pot https://www.criticalmasssystems.co.uk/products/varispeedfancontroller 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/varispeed.jpg?v=1605620327 Varispeed Fan Controller https://www.criticalmasssystems.co.uk/products/wormhumus40lbag 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/biobizzwormcastings.png?v=1613125308 Worm Humus 40L Bag - Price includes heavy item surcharge - cheaper instore! https://www.criticalmasssystems.co.uk/products/cfl125w 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/125wcflbulb.jpg?v=1612872172 CFL 125w https://www.criticalmasssystems.co.uk/products/filterstand 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/carbonfilterstand.jpg?v=1612779134 Filter Stand https://www.criticalmasssystems.co.uk/products/barbedinlinefilter 2026-07-07T20:22:51+01:00 daily https://www.criticalmasssystems.co.uk/products/silverfoiltape50mtr 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/87f7e4d0332c778454c6fc0da03e6f44565899df.jpg?v=1601628101 Silver Foil Tape 50mtr https://www.criticalmasssystems.co.uk/products/16waymdftimerboard 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/93ee08c2b963f2c52cd0e2bdea4843822913c493.jpg?v=1601628112 16 Way MDF Timer Board https://www.criticalmasssystems.co.uk/products/vitalise 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/millsvitalize.jpg?v=1613745244 Mills Vitalise https://www.criticalmasssystems.co.uk/products/mixedflowinlinefan 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/raminlinefan.jpg?v=1612778923 Whispair Mixed Flow Inline Fan https://www.criticalmasssystems.co.uk/products/ultimatepk 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/millsultimatepk.jpg?v=1613744872 Mills Ultimate PK https://www.criticalmasssystems.co.uk/products/theneutralizerprokit 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/TheNeutralizeroutofbox.png?v=1612779650 The Neutralizer Pro 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2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/largebudgetpropagator.jpg?v=1613476328 Budget Propagator - 58 x 39 x 23cm https://www.criticalmasssystems.co.uk/products/soilboxfits2bags 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/03c11c86d731b3e4b08628757ebab28867a6a5c8.png?v=1601628268 Soil Box (Fits 2 bags) https://www.criticalmasssystems.co.uk/products/clonex50ml 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/9f0ac59d09d44a93ea218f9b68da86104e930bf7.jpg?v=1601628281 Clonex 50ml https://www.criticalmasssystems.co.uk/products/clonexmist 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/clonex_mist_100ml.jpg?v=1613475878 Clonex Mist https://www.criticalmasssystems.co.uk/products/apollo600wmagneticballast 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/08a33effceebf75c1798cf44be5b58d36b5ff73c.jpg?v=1601631455 Apollo 600w magnetic ballast https://www.criticalmasssystems.co.uk/products/apollo600whpskit 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/maxibrightapollo600wkit.jpg?v=1612871467 Apollo 600w HPS Kit https://www.criticalmasssystems.co.uk/products/osram600whpsbulb 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/osram600whps.jpg?v=1612868954 Osram 600w HPS Bulb https://www.criticalmasssystems.co.uk/products/adjust-a-wingavengerreflector 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/adjustawing_avenger_reflector.png?v=1612867499 Adjust-A-Wing Avenger Reflector https://www.criticalmasssystems.co.uk/products/loadstardigitaleurowing600wlightingkit 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/600wdigitalhpskit.png?v=1612546333 Loadstar Digital Eurowing 600w Lighting Kit https://www.criticalmasssystems.co.uk/products/loadstar600wdigitalavengerkit 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/Loadstar600wadjustawingkit.png?v=1612546008 Loadstar 600w Digital Avenger Kit https://www.criticalmasssystems.co.uk/products/loadstar600wdigitalenforcerkit 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/600w-Digital-Enforcer-Kit.png?v=1612546161 Loadstar 600w Digital Enforcer Kit https://www.criticalmasssystems.co.uk/products/aquaburstwettingagent 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/aquaburstwettingagent.jpg?v=1613486839 Aqua Burst Wetting Agent https://www.criticalmasssystems.co.uk/products/propagationtentkit-mediumrockwool 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/4d4385b97d5df680803898117008883959364ca9.jpg?v=1601731769 Propagation Tent Kit - Medium (Rockwool) https://www.criticalmasssystems.co.uk/products/propagationtentkit-mediumrootriot 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/4d4385b97d5df680803898117008883959364ca9_c4752b2d-b8c6-4080-b5c7-7785d617eca3.jpg?v=1601732243 Propagation Tent Kit - Medium (Root Riot) https://www.criticalmasssystems.co.uk/products/gardenhighproproboxpropagator 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/fulltent1.jpg?v=1612969134 Garden HighPro Probox Propagator https://www.criticalmasssystems.co.uk/products/iecreplacementfemale10a 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/iecfemale_2.jpg?v=1612865962 IEC Replacement Female 10A https://www.criticalmasssystems.co.uk/products/iecreplacementmale10a 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/iecmale_2.jpg?v=1612865998 IEC Replacement Male 10A https://www.criticalmasssystems.co.uk/products/nukeem 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/flyingskullnukeem.jpg?v=1614172638 Flying Skull -Nuke Em https://www.criticalmasssystems.co.uk/products/flyingskull-spreadcoat250ml 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/flyingskullspreadcoat.jpg?v=1614172393 Flying Skull - Spread Coat 250ml https://www.criticalmasssystems.co.uk/products/maxibrightcdm315whorizonkit 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/maxibrightcdmhorizonkit.jpg?v=1612804872 Maxibright CDM 315W Horizon Kit https://www.criticalmasssystems.co.uk/products/nutientmangementkit 2026-07-07T20:22:51+01:00 daily https://www.criticalmasssystems.co.uk/products/dryingrack70cm6layers 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/lighthousedryingrack.jpg?v=1614166577 Lighthouse Drying Rack 70cm 6 layers https://www.criticalmasssystems.co.uk/products/batteries 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/aaabatteries.jpg?v=1614166372 Batteries https://www.criticalmasssystems.co.uk/products/zipzagsmellproofbag 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/zip-zaginbox.jpg?v=1614166055 Zip Zag Smell Proof Bag https://www.criticalmasssystems.co.uk/products/propagatorlargegarlandhightop 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/garlandhightoppropagator.jpg?v=1613476099 Propagator Large Garland High Top https://www.criticalmasssystems.co.uk/products/t52ftreplacement24wblue 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/t5replacementtube.jpg?v=1612804715 T5 Replacement Tube https://www.criticalmasssystems.co.uk/products/daylight300wled 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/maxibrightdaylight300wled.png?v=1612526741 Maxibright Daylight 300w LED https://www.criticalmasssystems.co.uk/products/yellowstickytrappackof7 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/yellowstickytraps.jpg?v=1614172151 Yellow Sticky Trap Pack of 7 https://www.criticalmasssystems.co.uk/products/universalcropsupportnet 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/50d4e83d9bea99b128a8035208df4716f12e1ee2.png?v=1603974214 Universal Crop Support Net https://www.criticalmasssystems.co.uk/products/vaccumbags40cmx60cm 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/eb6bd208d04065ee83c9cee0caf1c45085a280d4.png?v=1603974355 Vacuum Bags https://www.criticalmasssystems.co.uk/products/oilfilledradiator 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/0cd98bb7625b0ba662311204f77c10224d55d283.jpg?v=1603976102 Oil Filled Radiator 650w https://www.criticalmasssystems.co.uk/products/maxiswitchclassicrelay10a2way 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/2wayrelay.jpg?v=1612803708 Maxiswitch Classic Relay 10A 2 way https://www.criticalmasssystems.co.uk/products/pythoff1l 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/pythoff1l.jpg?v=1613486643 Pythoff https://www.criticalmasssystems.co.uk/products/3kwfanheater 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/lighthouse3kwfanheater2.jpg?v=1615477861 3kw Fan Heater 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Lumatek Attis 200w LED https://www.criticalmasssystems.co.uk/products/maxibrightdaylight660wproled 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/maxibrightdaylight600wproled.png?v=1612523667 Maxibright Daylight 660w pro LED https://www.criticalmasssystems.co.uk/products/lumatekzeus465wcompactproled 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/lumatekzeus465wprocompact.jpg?v=1612538219 Lumatek ZEUS 465w compact PRO LED https://www.criticalmasssystems.co.uk/products/lumatekzeus465wcompactled 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/lumatekzeus465wcompact.jpg?v=1612538425 Lumatek ZEUS 465w compact LED https://www.criticalmasssystems.co.uk/products/bamboocanex20120cm 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/9c98e080e08cae82c320c380eba6ddfcbf13f1a7.jpg?v=1605268902 Bamboo cane x20 (150cm) 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https://cdn.shopify.com/s/files/1/0397/1383/3127/products/maxibright480wproleddimensions.png?v=1612525246 Daylight LED 480w Pro https://www.criticalmasssystems.co.uk/products/lumatekleddaisychainlinkcable5mtr 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/lumatekdaisychaincable.jpg?v=1612538931 Lumatek LED Daisy Chain Link Cable 5mtr https://www.criticalmasssystems.co.uk/products/bubblegumboom 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/bubblegumboomairfreshener.jpg?v=1612778767 Bubblegum Boom Air Freshener https://www.criticalmasssystems.co.uk/products/seramis30lbag 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/seramisclaygranules.jpg?v=1613126504 Seramis https://www.criticalmasssystems.co.uk/products/scalpel-packof10 2026-07-07T20:22:51+01:00 daily 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XL Hand Water PRO Kit https://www.criticalmasssystems.co.uk/products/8potxlhandwaterprokit 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/c854351f78453ecf3e5f76d1a1d151f8f78c5594_e15aa3c4-b33b-4b9a-a9e3-6324c4399be5.jpg?v=1611408280 8 Pot XL Hand Water PRO Kit https://www.criticalmasssystems.co.uk/products/6pothandwaterprokit 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/setup_dede7579-c1c2-4f23-9447-3af1fa8ac822.jpg?v=1614011539 6 Pot XL Hand Water PRO Kit https://www.criticalmasssystems.co.uk/products/12potxlhandwaterprokit 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/c854351f78453ecf3e5f76d1a1d151f8f78c5594_8ee11338-168a-4441-9ac3-e8872b503f5a.jpg?v=1614011321 12 Pot XL Hand Water Pro Kit https://www.criticalmasssystems.co.uk/products/18potxlhandwaterprokit 2026-07-07T20:22:51+01:00 daily 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Critical Drip System XL - 18 pot high pressure https://www.criticalmasssystems.co.uk/products/criticaldripsystemxl-12pothighpressure 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/81934c22cef5604f902aa6091ae1c250bca81833_37db969f-0166-4347-9d92-78e2f98a81b0.jpg?v=1611590317 Critical Drip System XL - 12 pot high pressure https://www.criticalmasssystems.co.uk/products/criticaldripsystemxl-24pothighpressure 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/81934c22cef5604f902aa6091ae1c250bca81833_ad674e46-e827-4421-bcdd-ce98f86da00e.jpg?v=1611590317 Critical Drip System XL - 24 pot high pressure https://www.criticalmasssystems.co.uk/products/criticaldripsystemxl-36pothighpressure 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/81934c22cef5604f902aa6091ae1c250bca81833_a8919294-fb47-48f4-bc4f-90c122d18c06.jpg?v=1611590317 Critical Drip System XL - 36 pot high pressure 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https://cdn.shopify.com/s/files/1/0397/1383/3127/products/636d5daa3bfeffdb5aef1cad09832e98e2c57b0c.jpg?v=1615905734 Infrared Thermometer https://www.criticalmasssystems.co.uk/products/oilfilledradiator1kw 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/852d5b8344c438352fdda2a2f7e0bd8a3c948678.png?v=1617701396 Oil Filled Radiator 1kw https://www.criticalmasssystems.co.uk/products/ducttowallspigot 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/da2011595a4a96bb594a666c0ea0039a7d451c79.jpg?v=1617702357 Duct to Wall Spigot/Flange - Square https://www.criticalmasssystems.co.uk/products/eco-life45lsoilboxed 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/soilfront.webp?v=1755680961 Ecothrive Living Soil https://www.criticalmasssystems.co.uk/products/ecothrivelifecyclesoilamendment 2026-07-07T20:22:51+01:00 daily 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- 250mm (1808m3/h) https://www.criticalmasssystems.co.uk/products/whispairvalueecfiltrationkit585m3h 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/whispair6inchec_20ac151a-344d-4185-8e95-307aa081c922.jpg?v=1625050424 WhispAir Value EC Filtration Kit 150mm (585m3/h) https://www.criticalmasssystems.co.uk/products/whispairvalueecfiltrationkit200mm1205m3h 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/659e1debd3a1dc3a280b4e812b5c22a2d3ecadcc_cd081aa6-9d80-4cf0-b162-946cc4e2903e.jpg?v=1625050378 WhispAir Value EC Filtration Kit 200mm (1205m3/h) https://www.criticalmasssystems.co.uk/products/isomaxwhispairextractionkit150mm 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/isomaxacousticfilterkit_8d27f3e8-8eed-4df6-b563-f7a4d2dcbb04.jpg?v=1625054419 Isomax WhispAir Extraction kit 150mm https://www.criticalmasssystems.co.uk/products/isomaxwhispairextractionkit200mm 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/9d3c78cbfca50c0d810cfcc37ccfc67ee7115a4c.jpg?v=1625054334 Isomax WhispAir Extraction kit 200mm https://www.criticalmasssystems.co.uk/products/whispair-filter-kit-100mm-4-inch 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/whispair4inch.png?v=1625736293 WhispAir filter kit 100mm (4 inch) https://www.criticalmasssystems.co.uk/products/whispair-filter-kit-125mm-5-inch 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/whispair5inch_93d7bbbc-889c-46de-8d27-69fb20dde9d8.png?v=1625736358 WhispAir filter kit 125mm (5 inch) https://www.criticalmasssystems.co.uk/products/whispair-filter-kit-150mm-6-inch 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/whispair6inch_a41842b5-dd59-415a-b7ea-2d492d8fcb95.png?v=1625736395 WhispAir filter kit 150mm (6 inch) https://www.criticalmasssystems.co.uk/products/whispair-filter-kit-200mm-8-inch 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/whispair8inch_71f61439-cf3a-44c3-858a-252d3f46cf89.png?v=1625736446 WhispAir filter kit 200mm (8 inch) https://www.criticalmasssystems.co.uk/products/whispair-mixed-flow-filter-kit-100mm-4-inch 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/4inchmixed.jpg?v=1625740057 WhispAir Mixed flow filter kit 100mm (4 inch) https://www.criticalmasssystems.co.uk/products/whispair-mixed-flow-filter-kit-125mm-5-inch 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/5inchmixed.jpg?v=1625740122 WhispAir Mixed flow filter kit 125mm (5 inch) https://www.criticalmasssystems.co.uk/products/whispair-mixed-flow-filter-kit-150mm-6-inch 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/whispair6inch_aab7b14a-523e-4a16-80fd-53165c4d6918.png?v=1625740152 WhispAir Mixed flow filter kit 150mm (6 inch) https://www.criticalmasssystems.co.uk/products/budget-mixed-flow-filter-kit-100mm-4-inch 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/4inchmixed_bb16ddcc-cc78-43f3-a3d6-abf5f5fd3d04.jpg?v=1625741002 Budget Mixed Flow Filter kit 100mm (4 inch) https://www.criticalmasssystems.co.uk/products/budget-mixed-flow-filter-kit-125mm-5-inch 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/5inchmixed_343b9b87-89cc-4fea-affa-e2e70b741ee8.jpg?v=1625741034 Budget Mixed Flow Filter kit 125mm (5 inch) https://www.criticalmasssystems.co.uk/products/budget-mixed-flow-filter-kit-150mm-6-inch 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/flowerfilterbudgetfilter_37c5ba9c-88a9-4e6a-a43d-840930a7b446.jpg?v=1625741140 Budget Mixed Flow Filter kit 150mm (6 inch) https://www.criticalmasssystems.co.uk/products/1000w-maxibright-led-pro-tent-kit 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/daylight_1000w_pro_led_dims.png?v=1627550426 1030w Maxibright LED Pro Tent Kit https://www.criticalmasssystems.co.uk/products/2060w-maxibright-led-tent-kit 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/daylight_1000w_pro_led_dims_d49afb16-c370-45dc-82cb-64b3616e1521.png?v=1627550993 2060W Maxibright LED Tent Kit https://www.criticalmasssystems.co.uk/products/300w-maxibright-led-tent-kit 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/maxi300wpro.png?v=1641291161 300w Maxibright Pro LED Tent Kit (80cmx80cm) https://www.criticalmasssystems.co.uk/products/ora-23l-humidifier 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/orahumidifier23l.jpg?v=1627563390 Ora 23L Humidifier https://www.criticalmasssystems.co.uk/products/lumatek-attis-200w-tent-kit 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/lumatekattis200w_d6f08329-210e-4890-95b9-cddab292d3d7.jpg?v=1629901555 Lumatek Attis 200w Tent Kit https://www.criticalmasssystems.co.uk/products/maxibright-480w-pro-led-tent-kit 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/daylight_480W_led_pro_under_on.png?v=1629903796 Maxibright 480w Pro LED Tent Kit https://www.criticalmasssystems.co.uk/products/bigmamagrowblock 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/bigdaddy2.png?v=1714736482 Cultiwool Big Daddy 8" Block https://www.criticalmasssystems.co.uk/products/autopot9mmteepiece 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/fd895d6d2e2720768c68d5c6ca17b7589ca17853.jpg?v=1632415271 Autopot 9mm Tee Piece https://www.criticalmasssystems.co.uk/products/13mmteetombsp12inch 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/a44e557c9b855d6d5d6944794627627408d53560.jpg?v=1632415351 13mm Tee to M.BSP 1/2 inch https://www.criticalmasssystems.co.uk/products/sunmaster-metal-halide 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/sunmaster-halide-600w.jpg?v=1632415974 Sunmaster Metal Halide https://www.criticalmasssystems.co.uk/products/venturemetalhalide400w 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/VENTURE-HALIDE.jpg?v=1632416151 Venture Metal Halide 400w https://www.criticalmasssystems.co.uk/products/daylightcmh600w3ke40lamp 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/27409035050871f31c4de124a3936a71777924a0.jpg?v=1632416500 Daylight CMH/CDM 600w 3k E40 Lamp https://www.criticalmasssystems.co.uk/products/maxibright-daylight-315w-cmh-lamp 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/Maxibright-Daylight-315w-CMH-Agro-3k-Lamp.jpg?v=1632416586 Maxibright Daylight 315w CMH Lamp https://www.criticalmasssystems.co.uk/products/plugtoiec3mtrcablelength10a 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/1416dbfcfc7252b1e6d2d099b9d5bd0d34c543dc.jpg?v=1634140270 Plug to IEC 3mtr Cable Length 10A https://www.criticalmasssystems.co.uk/products/dio-tech-830w-led 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/master.png?v=1638883506 Dio-Tech 830w LED Diotech 830w LED | CriticalMassSystems https://www.criticalmasssystems.co.uk/products/maxibright-daylight-300w-pro-25-umol 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/daylight_300W_pro_led_dims_dimmer.png?v=1641293294 Maxibright Daylight 300w Pro LED 2.5 u/mol https://www.criticalmasssystems.co.uk/products/skram-plant-wash 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/SKRAN-Plant-Wash-250ml---Critical-Mass-Systems.jpg?v=1638877075 SKRAM Plant Wash A bottle of SKRAM Plant Wash from Critical Mass Systems https://www.criticalmasssystems.co.uk/products/300w-maxibright-pro-led-tent-kit-1mx1m 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/DAYLIGHT-300W-PRO_below.png?v=1641293228 300w Maxibright Pro LED Tent Kit (1mx1m) https://www.criticalmasssystems.co.uk/products/floraflex 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/4_inch_floracap.jpg?v=1642165886 FloraFlex Rockwool Block Drip Accessories https://www.criticalmasssystems.co.uk/products/4-outlet-manifold-13mm 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/Origin-13mm-Outlet-Manifold-to-4mm---Critical-Mass-Systems.jpg?v=1642168123 4 Outlet Manifold 13mm https://www.criticalmasssystems.co.uk/products/neutraliserrefill 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/93fc62261bde403d6ed1ecb3bb5246509ac71dbf.png?v=1642431415 Neutraliser Refill https://www.criticalmasssystems.co.uk/products/uvonair-cd1000-2-cell-ozone-generator 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/c8b91f77cefbdf16859ecc7b4bb6b95a3ee1f8a0.jpg?v=1645613705 Uvonair CD1000 2 Cell Ozone Generator https://www.criticalmasssystems.co.uk/products/12-pot-floraflex-big-mama-drip-kit-high-pressure 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/4potresized.jpg?v=1645720803 12 Pot FloraFlex Big Mama Drip Kit - high pressure https://www.criticalmasssystems.co.uk/products/16-pot-floraflex-big-mama-drip-system-high-pressure 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/4potresized_8965e523-84d7-4f73-830b-53d2cef58822.jpg?v=1645720861 16 Pot FloraFlex Big Mama Drip Kit - high pressure https://www.criticalmasssystems.co.uk/products/24-pot-floraflex-big-mama-drip-kit-high-pressure 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/4potresized_91d62a17-8112-4a72-afcb-9d5121c9b2bc.jpg?v=1645720900 24 Pot FloraFlex Big Mama Drip Kit - high pressure https://www.criticalmasssystems.co.uk/products/36-pot-floraflex-big-mama-drip-kit-high-pressure 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/4potresized_68d0d051-6054-47ad-a9ee-adabd1f183f2.jpg?v=1645721002 36 Pot FloraFlex Big Mama Drip Kit - high pressure https://www.criticalmasssystems.co.uk/products/4-pot-floraflex-big-mama-drip-kit-low-pressure 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/4potresized_089138a3-9842-4762-a12a-870019f2df24.jpg?v=1645721034 4 Pot FloraFlex Big Mama Drip Kit - low pressure https://www.criticalmasssystems.co.uk/products/8-pot-floraflex-big-mama-drip-kit-low-pressure2 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/4potresized_d6e399c2-ce4f-4f68-9e30-9bdfe945a34c.jpg?v=1645721062 8 Pot FloraFlex Big Mama Drip Kit - Low Pressure (2) https://www.criticalmasssystems.co.uk/products/my-co2-bag 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/myco2-close.jpg?v=1646066527 MY-CO2 Bag https://www.criticalmasssystems.co.uk/products/puisar600wdigitallightingkitwfreelighthanger 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/0e0f6aad302e6f88bd3627e66847bc2ccd1cd2f8.jpg?v=1646299361 Pulsar 600w Digital Lighting Kit w/ FREE Light Hanger https://www.criticalmasssystems.co.uk/products/600wdigikit-sunmasterbulb 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/pulsar-digital-ballast-600w.jpg?v=1646299629 600w digi kit -SUNMASTER BULB https://www.criticalmasssystems.co.uk/products/pulsar600wdigitalballast 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/dbb443da053c4c633817fdc0b85d70fbd4a0bdbb.png?v=1646301063 Pulsar 600w Digital Ballast https://www.criticalmasssystems.co.uk/products/acousticducting10mtr 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/Acoustic-ducting.jpg?v=1646301863 Acoustic Ducting 10mtr https://www.criticalmasssystems.co.uk/products/acoustic-ducting-5mtr-1 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/Acoustic-ducting_9b1ebc25-2040-4342-9c8a-0cbd5d090066.jpg?v=1646301971 Acoustic Ducting 5Mtr https://www.criticalmasssystems.co.uk/products/aircomfortwirelesstemperaturehumiditysensor 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/9f4fcfcaec562cdd073236a9926611abff8b5178.png?v=1646302778 Air Comfort Wireless Temperature & Humidity Sensor https://www.criticalmasssystems.co.uk/products/autopot-square-pot-15l 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/autopot-15l-square-pot.jpg?v=1646304466 Autopot Square Pot 15L https://www.criticalmasssystems.co.uk/products/barbedreducer25mm-19mm 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/16ad7691be362464879d4852ceb2de391991e7fc.png?v=1646304633 Barbed Reducer 25mm -19mm https://www.criticalmasssystems.co.uk/products/bluestickytrap-thrips 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/blue-sticky-traps.jpg?v=1646305028 Blue Sticky Trap -thrips https://www.criticalmasssystems.co.uk/products/chopchopcurvedscissors 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/e71a608290a7ae2f6eef86b41d0a9f85f0d98d28.jpg?v=1646305193 Chop Chop Curved Scissors https://www.criticalmasssystems.co.uk/products/dutchproexplode 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/d24525953b3b95fffe430a826ccdfe62441831e4.jpg?v=1646305545 Dutch Pro Explode https://www.criticalmasssystems.co.uk/products/ecotechnicsco2regulator 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/5868e686921bec20515b9c00a9d710f240fe3695.jpg?v=1646305910 Ecotechnics Co2 Regulator https://www.criticalmasssystems.co.uk/products/ecotechnicsevolutionppmcontroller 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/a12a021214b8b9a768acbda08759975e6ab09e62.jpg?v=1646306107 Ecotechnics Evolution PPM Controller https://www.criticalmasssystems.co.uk/products/farananaloguehumidistat 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/3c4d5e540c7bed0eb23ef121e7cf3bb77955dade.jpg?v=1646306576 Faran Analogue Humidistat https://www.criticalmasssystems.co.uk/products/haileahx45002000ltrhrwaterpump 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/7ff3922e2409a9a57ddb005c705fdb13fede7d28.jpg?v=1646308702 Hailea HX4500 2000Ltr/Hr Water Pump https://www.criticalmasssystems.co.uk/products/handpressuresprayer15ltr 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/60571c4c9efb8a9b1cbd01e99227cb07ef76bf07.jpg?v=1646309034 Hand Pressure Sprayer 1.5Ltr https://www.criticalmasssystems.co.uk/products/hpfilterbodyw120micronscreen 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/185044e322aa455e9cef8f65955f08da39c548e9.jpg?v=1646309253 HP Filter Body w/120 Micron Screen https://www.criticalmasssystems.co.uk/products/iws-float-switch 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/17b8cd94ef3a1275f9979507564b58a04a469f2e.jpg?v=1646309475 IWS Float Switch https://www.criticalmasssystems.co.uk/products/iws-spanner 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/IWS-Spanner.jpg?v=1646310028 IWS Spanner https://www.criticalmasssystems.co.uk/products/jiffy-cell-tray 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/loaded-jiffy-tray.jpg?v=1646310470 Jiffy Cell Tray https://www.criticalmasssystems.co.uk/products/krystal-fan-controller 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/Krystal-Dual-Fan-Speed-Controller-lrg.jpg?v=1646315645 Krystal Fan Controller https://www.criticalmasssystems.co.uk/products/lava-lite-no-gnats-3l 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/lava-lite-no-gnats.jpg?v=1646316506 Lava Lite No-Gnats 3L https://www.criticalmasssystems.co.uk/products/microscope-x-100 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/x100-microscope.jpg?v=1646317009 Microscope x 100 https://www.criticalmasssystems.co.uk/products/microscopex60 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/x60-microscope.jpg?v=1646317011 Microscope x 60 https://www.criticalmasssystems.co.uk/products/maxibright-600w-hps-dual-spectrum-lamp 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/Maxibright-HPS-Dual-spectrum-600w-Lamp---Angled.jpg?v=1646323285 Maxibright 600w HPS Dual Spectrum Lamp https://www.criticalmasssystems.co.uk/products/newrubyfulvic1l 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/b2180f37d075a672bd42c7beee520aeb9fcf1acc.jpg?v=1646324166 New Millenium Ruby Fulvic https://www.criticalmasssystems.co.uk/products/pipecutter42mm 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/Blue_pipe_cutters.webp?v=1764867927 Pipe Cutter 42mm https://www.criticalmasssystems.co.uk/products/plant-bendz-pk-x-50 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/bendz.jpg?v=1646324998 Plant Bends Pk x 50 https://www.criticalmasssystems.co.uk/products/lumiigreenledworklight 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/2e9b3dde93e33cd88ac85e357db56f2361799e07.jpg?v=1646822950 Lumii Green LED Work Light https://www.criticalmasssystems.co.uk/products/lumiigrowroomglasses 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/6d48dfa1ca8d2112cc32c6571902c446faa57f1e.jpg?v=1646823155 Lumii Growroom Glasses https://www.criticalmasssystems.co.uk/products/nitrile-gloves 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/Nitrile-Gloves.jpg?v=1646823510 Nitrile Gloves https://www.criticalmasssystems.co.uk/products/plant-labels-x20 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/plant-labels.jpg?v=1646823573 Plant Labels x20 https://www.criticalmasssystems.co.uk/products/prima-klima-eco-coco-filter 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/Prima-klima-filter.png?v=1646845686 Prima Klima Eco Coco Filter https://www.criticalmasssystems.co.uk/products/orca-reflective-sheeting-10mtr 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/orcaangled.jpg?v=1647265052 Orca Reflective Sheeting 10mtr https://www.criticalmasssystems.co.uk/products/plant-support-pole 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/plant-support-poles.jpg?v=1647271485 Plant Support Pole https://www.criticalmasssystems.co.uk/products/trojan-tent 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/120x120.jpg?v=1647273080 Trojan Gold Tents https://www.criticalmasssystems.co.uk/products/trollmaster-beta-4-thermostat 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/trollmaster-beta4-stat.jpg?v=1647278003 Trollmaster Beta-4 Thermostat - day/night temperature controller TrolMaster Beta-4 day/night temperature controller available to buy from Critical Mass Systems https://www.criticalmasssystems.co.uk/products/mountainair-stepdown-collar-14-to-12-inch 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/Mountainair-Step-Down-Collar-14-to-12-inch.jpg?v=1647352409 Mountain Air Stepdown Collar 14 to 12 Inch https://www.criticalmasssystems.co.uk/products/magna-mater-boost 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/magna-boost-family.png?v=1647433697 Magna Mater Boost https://www.criticalmasssystems.co.uk/products/magna-mater-mono-silicic 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/magna-mono-silicic-family.png?v=1647433702 Magna Mater Mono-Silicic https://www.criticalmasssystems.co.uk/products/magna-mater-pk9-18 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/magna-pk-918-family.png?v=1647433705 Magna Mater PK 9/18 https://www.criticalmasssystems.co.uk/products/magna-mater-cocohydro-ab 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/magna-coco-famiky.png?v=1647433709 Magna Mater Coco/Hydro A&B https://www.criticalmasssystems.co.uk/products/magna-mater-cal-mag 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/magna-cal-family.png?v=1647433713 Magna Mater Cal-Mag https://www.criticalmasssystems.co.uk/products/magna-mater-roots 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/magna-roots-family.png?v=1647433716 Magna Mater Roots https://www.criticalmasssystems.co.uk/products/cococompressedblock5kg 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/5b2133d259d99196f7e37b851026ed65bb5e6ea5.jpg?v=1647531794 Coco Compressed Block 5kg https://www.criticalmasssystems.co.uk/products/maxibright-juno-720w-1800-ppfd 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/MaxibrightJUNO1800folded-CriticalMassSystemsLtd.jpg?v=1652105697 Maxibright Juno 720w 1800 PPFD https://www.criticalmasssystems.co.uk/products/9mmcrossconnector 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/9mm-autopot-cross-connector.jpg?v=1655803134 9mm Cross Connector https://www.criticalmasssystems.co.uk/products/b52 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/B52-1-litre.jpg?v=1655804592 Advanced Nutrients B-52 https://www.criticalmasssystems.co.uk/products/120-micron-filter-screen 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/120-Micron-Filter-Screen.jpg?v=1666602124 120 Micron Filter Screen https://www.criticalmasssystems.co.uk/products/budcandy4l 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/budcandy.jpg?v=1666697126 Advanced Nutrients Bud Candy https://www.criticalmasssystems.co.uk/products/aquadrive-10000ltrhr-submersibble-pump 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/aquadrive.jpg?v=1666697013 Aquadrive High Pressure Submersible Pump https://www.criticalmasssystems.co.uk/products/big-bud-coco-4l 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/Big-Bud-Coco-4L.jpg?v=1666603713 Big Bud Coco 5L https://www.criticalmasssystems.co.uk/products/biobizzcalmag 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/biobizzcalmag.png?v=1666696920 Biobizz Cal Mag https://www.criticalmasssystems.co.uk/products/biobizz-leaf-coat-1l 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/biobizz-leaf-coat-1l.jpg?v=1666605368 Biobizz Leaf Coat https://www.criticalmasssystems.co.uk/products/canna-terra-professional-50l 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/cannaterrapro.webp?v=1666697427 Canna Terra Professional 50L 50l bag of CANNA Terra Professional Growing Media. available from Critical mass Systems. https://www.criticalmasssystems.co.uk/products/danish-tray 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/danishtraygroup.jpg?v=1666697244 Danish Tray https://www.criticalmasssystems.co.uk/products/cx-tanlin 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/tanlin.jpg?v=1666697708 CX Horticulture Tanlin 20ml https://www.criticalmasssystems.co.uk/products/cherry-burst-air-freshener 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/cherry-burst.jpg?v=1666607584 Cherry Burst Air Freshener https://www.criticalmasssystems.co.uk/products/essentials-ph-test-kit 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/essentialsphtestkit.jpg?v=1666697978 Essentials pH test kit - wide spectrum https://www.criticalmasssystems.co.uk/products/evoponic-elixir-steroids 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/elixir_steroids_group_image.jpg?v=1666608821 Evoponic Elixir steroids https://www.criticalmasssystems.co.uk/products/gas-enviro-controller 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/ENVIRO-controller.png?v=1666609304 G.A.S Enviro controller GAS Enviro Controller. Critical Mass Systems https://www.criticalmasssystems.co.uk/products/gavita-master-controller-el-1-gen2 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/GAV-EL1.png?v=1666609767 Gavita Master Controller EL-1 Gen2 https://www.criticalmasssystems.co.uk/products/goliath-1l 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/goliath_group_image.jpg?v=1666610907 Evoponic Goliath https://www.criticalmasssystems.co.uk/products/growerarkroottonic5ltr 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/root-tonic.jpg?v=1666615988 Grower Ark Root Tonic https://www.criticalmasssystems.co.uk/products/guard-n-aid-for-spidermite 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/guard-n-aid-spidermite.jpg?v=1666616579 Guard N Aid for spidermite https://www.criticalmasssystems.co.uk/products/hg-bat-mix-50l 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/Bat-Mix-50L.jpg?v=1666616895 H&G Bat Mix 50L https://www.criticalmasssystems.co.uk/products/hyperfan-stealth-v2-6 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/Phresh-silenced-hyper-fan.png?v=1666619817 Phresh Hyperfan Stealth V2 https://www.criticalmasssystems.co.uk/products/imperiumdurationcontroller 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/6958a9450a206ae8280484ea85a1806f2c2d3697.jpg?v=1666621790 Imperium Duration Control Timer https://www.criticalmasssystems.co.uk/products/iwspotfiltermesh 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/5586a1baecf5e08f79a6a7459ca400492cb25919.jpg?v=1666694016 IWS Pot Filter Copper Mesh https://www.criticalmasssystems.co.uk/products/sun-system-rs1850 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/sunsystemrs1850720wbelow.webp?v=1666696071 Sun Systems RS1850 Sun System RS 1850 LED full scale critical mass systems https://www.criticalmasssystems.co.uk/products/intregaboost2-wayhumidityregulatorpack 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/integrajars.webp?v=1666710095 Integra Boost 2-way Humidity Regulator Pack https://www.criticalmasssystems.co.uk/products/lumatekdigitallightingcontroller 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/e19e7102499056fda8a3450875e97e4eeefdcbc8.jpg?v=1666710338 Lumatek Digital Lighting Controller https://www.criticalmasssystems.co.uk/products/growers-ark-boost-it 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/boost-it.jpg?v=1666711850 Growers Ark Boost It https://www.criticalmasssystems.co.uk/products/growers-ark-extra-traces-universal 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/extra-traces.jpg?v=1666712343 Growers Ark Extra Traces Universal https://www.criticalmasssystems.co.uk/products/maxibright-daylight-power-extension-lead-5mtr 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/Daylight-Power-Extension-Cable-Lead.jpg?v=1666712740 Maxibright Daylight Power Extension Lead 5mtr https://www.criticalmasssystems.co.uk/products/sonic-air-pro-humidifer 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/sonic-air-pro.png?v=1667307769 Sonic Air Pro Humidifier Sonic Air Pro Humidifier. Critical Mass Systems https://www.criticalmasssystems.co.uk/products/gas-intelligent-humidity-controller-sonic-air-pro 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/sonic-air-pro-controller.png?v=1667308136 G.A.S Intelligent Humidity Controller (sonic Air Pro) sonic air intelligent humidity controller. critical mass systems https://www.criticalmasssystems.co.uk/products/solo-5l-professional-garden-sprayer 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/solo-garden-sprayer-5l.png?v=1667308674 Solo 5l Professional Garden Sprayer https://www.criticalmasssystems.co.uk/products/aquamaster-p50-pro-ph-meter 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/aquamaster-ph-pen.jpg?v=1667392892 Aqua Master P50 Pro pH Meter https://www.criticalmasssystems.co.uk/products/aquamaster-e50-pro-ec-meter 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/ec-temp-meter-e50-pro-4779-en-G.jpg?v=1667393061 Aqua Master E50 Pro EC Meter https://www.criticalmasssystems.co.uk/products/aqua-master-ph-meter-replacement-probe 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/aquamaster-ph-probe.png?v=1668163019 Aqua Master PH Meter Replacement Probe https://www.criticalmasssystems.co.uk/products/grodan-delta-4-inch-small-hole-full-box-216-blocks 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/4inchsmallhole_28cb69f9-122f-4bc7-9401-62ab248834aa.jpg?v=1668773015 Grodan Delta 4 inch small hole - FULL BOX (216 blocks) https://www.criticalmasssystems.co.uk/products/phonic-trap 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/Phonic-Trap.png?v=1669300775 Phonic Trap Ducting phonics trap silent ducting for indoor growing. critical mass systems https://www.criticalmasssystems.co.uk/products/aqua-master-combo-meter-p700-pro2 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/combo-meter-p700-pro-2-4790-en-G.jpg?v=1670927514 Aqua Master Combo Meter P700 Pro2 https://www.criticalmasssystems.co.uk/products/sonic-air-humidifier 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/sonic-air-humidifier.png?v=1670927747 Sonic Air Humidifier https://www.criticalmasssystems.co.uk/products/time-r-digital-timer 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/time-r-digital-timer.jpg?v=1673959926 Time-R Digital Timer https://www.criticalmasssystems.co.uk/products/lumatek-600w-29-umol-led 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/Lumatek-600w-2-9.jpg?v=1680253712 Lumatek Zeus 600w 2.9 u/mol LED https://www.criticalmasssystems.co.uk/products/can-lite-14-3500 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/Can-Lite-carbon-filters.jpg?v=1683901958 Can-lite Filters https://www.criticalmasssystems.co.uk/products/pcb-valve-8ltrhr 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/pcb-8l.jpg?v=1685697168 PCB Valve 8 litre/hr https://www.criticalmasssystems.co.uk/products/spectro-tech-660w-led 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/660wspectrotech.jpg?v=1688555899 Spectro-Tech 660w LED https://www.criticalmasssystems.co.uk/products/spectro-tech-480w-led 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/flatbelow.jpg?v=1688556011 Spectro-Tech 480w LED https://www.criticalmasssystems.co.uk/products/spectro-tech-300w-led 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/belowmain.jpg?v=1688556248 Spectro Tech 300w LED https://www.criticalmasssystems.co.uk/products/shogun-cal-mag 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/group.jpg?v=1688561375 Shogun Cal-Mag https://www.criticalmasssystems.co.uk/products/shogun-dragon-force 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/Family-Dragon-Force__60398.jpg?v=1688561562 Shogun Dragon Force https://www.criticalmasssystems.co.uk/products/shogun-geisha-foliar 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/Foliar__74526.jpg?v=1688562621 Shogun Geisha Foliar https://www.criticalmasssystems.co.uk/products/shogun-katana-roots 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/roots-family__19648.jpg?v=1688562418 Shogun Katana Roots https://www.criticalmasssystems.co.uk/products/shogun-pk-warrior 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/Family-PK-Warrior__24590.jpg?v=1688563203 Shogun PK Warrior https://www.criticalmasssystems.co.uk/products/shogun-samurai-coco-ab 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/Family__02969.jpg?v=1688562971 Shogun Samurai Coco A&B https://www.criticalmasssystems.co.uk/products/shogun-samurai-hydro 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/faMILY__14497.jpg?v=1688563828 Shogun Samurai Hydro https://www.criticalmasssystems.co.uk/products/shogun-silicon 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/Silicon-Fam__53721--1.jpg?v=1688564005 Shogun Silicon https://www.criticalmasssystems.co.uk/products/shogun-start 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/Start_Family_SHot__99499.jpg?v=1688564110 Shogun Start https://www.criticalmasssystems.co.uk/products/shogun-active-boost 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/Family_Sumo_Active-2__64883.jpg?v=1688564525 Shogun Sumo Active Boost https://www.criticalmasssystems.co.uk/products/shogun-sumo-boost 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/Family_Shot__34400.jpg?v=1688564868 Shogun Sumo Boost https://www.criticalmasssystems.co.uk/products/shogun-zenzym 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/Zenzym_Family_Shot__67754.jpg?v=1688565085 Shogun Zenzym https://www.criticalmasssystems.co.uk/products/pro-leaf-c02-controller 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/Pro-leaf-co2-controller.jpg?v=1688636985 Pro-Leaf C02 Controller https://www.criticalmasssystems.co.uk/products/pro-leaf-co2-regulator 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/proleafco2regulator.png?v=1688637577 Pro-Leaf Co2 Regulator https://www.criticalmasssystems.co.uk/products/12-way-mdf-timer 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/12-way-mdf.png?v=1688638034 12 way MDF timer https://www.criticalmasssystems.co.uk/products/aqua-master-ec1413-cal-solution-100ml 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/ec-calibration-soln.png?v=1688638221 Aqua Master EC1413 Cal Solution 100ml https://www.criticalmasssystems.co.uk/products/aqua-master-kcl-solution 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/kcl.png?v=1688638319 Aqua Master KCL Solution https://www.criticalmasssystems.co.uk/products/aqua-master-ph4-buffer-solution 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/buffer-4.png?v=1688638407 Aqua Master pH4 Buffer Solution https://www.criticalmasssystems.co.uk/products/aqua-master-ph7-buffer-solution 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/buffer-7.png?v=1688638478 Aqua Master pH7 Buffer Solution https://www.criticalmasssystems.co.uk/products/athena-balance 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/balance-gallon.jpg?v=1688638760 Athena Balance https://www.criticalmasssystems.co.uk/products/athena-fade 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/fade-gallon.jpg?v=1688638978 Athena Fade https://www.criticalmasssystems.co.uk/products/athena-pro-bloom 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/pro-bloom.jpg?v=1688639188 Athena Pro Bloom https://www.criticalmasssystems.co.uk/products/athena-pro-core 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/Core-25lb-5lb-01.jpg?v=1688639310 Athena Pro Core https://www.criticalmasssystems.co.uk/products/athena-pro-grow 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/Grow-25lb-5lb-01.jpg?v=1688639510 Athena Pro Grow https://www.criticalmasssystems.co.uk/products/athena-stack 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/stack.jpg?v=1688639836 Athena Stack https://www.criticalmasssystems.co.uk/products/bac-plant-vitality-plus 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/Plant-Vitality-BAC_jpg.jpg?v=1688640858 BAC Plant Vitality Plus https://www.criticalmasssystems.co.uk/products/can-fan-ec-speed-temperature-controller 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/can-fan-ec-max-speed--temp.png?v=1688641422 Can Fan EC Speed & Temperature Controller https://www.criticalmasssystems.co.uk/products/can-fan-lcd-ec-fan-controller 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/can-ec-fan-controller-lcd_600x600_e840f90f-7167-42a4-9034-da1177066807.png?v=1688641649 Can Fan LCD EC Fan Controller https://www.criticalmasssystems.co.uk/products/evoponic-bud-honey 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/bus-honey-1l.jpg?v=1688645671 Evoponic Bud Honey https://www.criticalmasssystems.co.uk/products/evoponic-force-field 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/force-field.png?v=1688645756 Evoponic Force Field https://www.criticalmasssystems.co.uk/products/evoponic-liquid-ice 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/liquid-ice-1l.jpg?v=1688645962 Evoponic Liquid Ice https://www.criticalmasssystems.co.uk/products/evoponic-rapid-roots-50ml 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/0607-Rapid-Roots.jpg?v=1688646309 Evoponic Rapid Roots 50ml https://www.criticalmasssystems.co.uk/products/evoponic-roxy 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/Roxy1litre.jpg?v=1688647729 Evoponic Roxy https://www.criticalmasssystems.co.uk/products/eazy-plug 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/cc2f01c4f2e39686ebb36eecb4080102758064d2.jpg?v=1688647960 Eazy Plug Tray https://www.criticalmasssystems.co.uk/products/canna-aqua-pebbles 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/canna-clay-pebbles.jpg?v=1688654385 CANNA Aqua Pebbles https://www.criticalmasssystems.co.uk/products/gorillabox-grow-tents 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/1.2mx1.2m.webp?v=1689603138 GorillaBox Grow Tents https://www.criticalmasssystems.co.uk/products/pulsar-max-720w-led-including-ballast 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/pulsar-front.png?v=1694428216 Pulsar MAX 720W LED Including Ballast https://www.criticalmasssystems.co.uk/products/specialmix50l 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/jiffyallmix_500x__81205.jpg?v=1694685661 Jiffy All-Mix 50l https://www.criticalmasssystems.co.uk/products/biobav-problem-solver-1l 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/Biobav-problem-solver.jpg?v=1695389492 BioBav Problem Solver 1l https://www.criticalmasssystems.co.uk/products/ram-wall-fan 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/RAM-Wall-Fan.jpg?v=1696591458 RAM Wall Fan https://www.criticalmasssystems.co.uk/products/30lday-dehumidifer 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/30l-day-dehumidifier.jpg?v=1697039504 30l/day Dehumidifer https://www.criticalmasssystems.co.uk/products/pulsar-720w-led-no-ballast 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/folded.png?v=1697202196 Pulsar 720w LED - NO BALLAST https://www.criticalmasssystems.co.uk/products/pulsar600whpslamp 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/55919309b79268fb9a516bf40d29d3706ae2f6ce.png?v=1697204448 Pulsar 600w HPS Lamp https://www.criticalmasssystems.co.uk/products/plagron-green-sensation 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/plagron_green_sensation_5l.jpg?v=1697452327 Plagron Green Sensation https://www.criticalmasssystems.co.uk/products/co2-gro-12l-diy-co2-generation-system-with-solenoid 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/CO2-Gro-Generator.png?v=1700492585 Co2 Gro - 12l DIY Co2 generation system with solenoid https://www.criticalmasssystems.co.uk/products/solar-tech-720w-led 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/flat-solar-tech.jpg?v=1709551724 Solar-tech 720w LED https://www.criticalmasssystems.co.uk/products/horti-25-crop-protector 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/products/horti-25.jpg?v=1709904880 Horti 25 Crop Protector https://www.criticalmasssystems.co.uk/products/aquadrive-compression-sprayers 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/aquadrive-sprayer-group.png?v=1714490498 Aquadrive Compression Sprayers https://www.criticalmasssystems.co.uk/products/airfan-thermo-box-fan 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/Airfan-Box-Fan_600x600_8c98dd65-cf9d-4b20-8024-74490e4a47c0.jpg?v=1714559803 Airfan - Thermo Box Fan https://www.criticalmasssystems.co.uk/products/bio-green-flower-boost-6-x-75g-ssachets 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/Flower-Boost_500x500_29d880e4-8869-45fc-89e1-f1adc6688571.jpg?v=1714559911 Bio-Green Flower Boost (6 x 75g Ssachets) https://www.criticalmasssystems.co.uk/products/clarke-pvp-11a-258lm-11m-height-irrigation-pump 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/clarke-irrigation-pump.jpg?v=1714560350 Clarke Submersible Irrigation Pump PVP11A https://www.criticalmasssystems.co.uk/products/clonex-pro-start 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/CLonex-Pro-Start_500x500_bd5a71a1-6a35-4782-9b40-662cce702eb3.png?v=1714561016 Clonex Pro Start https://www.criticalmasssystems.co.uk/products/control-led-controller 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/ControlLED-Lighting-Controller_1200x1200_5f58d7f7-3370-4231-9359-c98808a9e08e.png?v=1714562248 Control LED Controller https://www.criticalmasssystems.co.uk/products/cyclone-floor-fans 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/cyclone-floor-fans.jpg?v=1714562900 Cyclone Floor Fans https://www.criticalmasssystems.co.uk/products/active-splitter-cable-y 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/fan-controller-gas-digital-ec-cable-pack-9-active-y-splitter-31261399580856.jpg?v=1714563085 GAS Active splitter cable https://www.criticalmasssystems.co.uk/products/aqua-master-combo-pen-p110-pro-phectemp 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/combo-pen-p110-pro-4819-en-G_1024x1024_c35cccb0-8b26-46df-b3f0-698ecf8223d5.webp?v=1714568899 Aqua Master Combo Pen P110 Pro pH/EC/Temp https://www.criticalmasssystems.co.uk/products/wind-king-wall-fan 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/wind-king-fan_600x600_011b5d74-4985-4aa8-a276-f3f82cec78e5.png?v=1714564760 Wind king wall fan https://www.criticalmasssystems.co.uk/products/natural-garden-twine-150gsm-100m 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/jute-twine-gsm.png?v=1714565751 Natural Jute garden twine 150gsm 100m https://www.criticalmasssystems.co.uk/products/aqua-master-replacement-combo-pen-probe-p110 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/Aqua-Master-P110-Replacement-Probe.jpg?v=1714565882 Aqua-master P110 replacement probe https://www.criticalmasssystems.co.uk/products/pvc-coated-garden-wire 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/pvc-wire.png?v=1714566118 PVC coated garden wire https://www.criticalmasssystems.co.uk/products/control-led-controller-sernsor 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/control-led-sensor.png?v=1714567696 Control LED Controller Sensor - temp, humidity & CO2 https://www.criticalmasssystems.co.uk/products/mission-control-digi-step-controller 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/mission-control-digi-temp-controller_474x474_a9fd2c04-4189-410e-9839-c4db4039ce83.png?v=1714568040 Mission Controls Digi-Step Controller https://www.criticalmasssystems.co.uk/products/gas-5m-male-to-male-active-cable 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/Gas-male-male-extension-cable-5m.jpg?v=1714569464 G.A.S Male/Male Extension Active Cable 5m https://www.criticalmasssystems.co.uk/products/whispair-wall-fan 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/whisapir-wall-fan_399x600_3502543f-5717-4a38-835e-01b7f263d5d0.png?v=1714569832 Whispair wall fan https://www.criticalmasssystems.co.uk/products/secret-jardin-monkey-fan-8-oscillating 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/secret-jardin-monkey_600x600_7ecce0a8-68ba-4a90-84f6-5a17eba83bc0.jpg?v=1714570207 Secret Jardin Monkey fan 8" oscillating https://www.criticalmasssystems.co.uk/products/ram-eco-floor-fan 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/Ram-Eco-Floor-Fan.jpg?v=1714570301 RAM Eco floor Fan https://www.criticalmasssystems.co.uk/products/gas-daynight-humidity-controller 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/EskimoPL-gas-day-night-dehumidifier-controller-EskimoDivider_1.jpg?v=1714570515 G.A.S Day/Night Humidifier Controller https://www.criticalmasssystems.co.uk/products/ram-18-metal-wall-fan 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/ram-heavy-duty-wall-fan.jpg?v=1714570619 Ram 18" Metal wall fan https://www.criticalmasssystems.co.uk/products/gas-ec1-fan-controller 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/EC1.png?v=1714571355 G.A.S EC1 Fan Controller https://www.criticalmasssystems.co.uk/products/mission-control-single 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/mission-control-single-temp-controller.jpg?v=1714571557 Mission Control Single Fan Controllers https://www.criticalmasssystems.co.uk/products/gas-ec2-fan-controller 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/EC2.png?v=1714571711 G.A.S EC2 Fan Controller https://www.criticalmasssystems.co.uk/products/gas-active-female-to-female-extension-cable 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/ACTF2F.png?v=1714573402 G.A.S Active female to female extension cable https://www.criticalmasssystems.co.uk/products/athena-pro-mixing-kit 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/nutrients-athena-pro-starter-mix-kit-39463678771415.webp?v=1714578972 Athena Pro Mixing Kit https://www.criticalmasssystems.co.uk/products/athena-cleanse 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/Athena_20Blended_20Cleanse_2032oz_f246d733-31a8-4793-b6af-3ff195d8245a_510x-progressive.jpg?v=1714578105 Athena Cleanse https://www.criticalmasssystems.co.uk/products/rhino-pro-carbon-filter-xxl-315x1200-3600m3h 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/rhino-pro-carbon-filters-group.jpg?v=1714579706 Rhino Pro Carbon Filters https://www.criticalmasssystems.co.uk/products/u-go-silent-ec-fan 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/u-go-silenced-fan.png?v=1714579742 U-GO silent EC fan https://www.criticalmasssystems.co.uk/products/whispair-super-silent-acoustic-ducting-black 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/Whispair-super-silent-ducting_400x_6fb96179-ddcc-42db-9783-948cc7e480c5.jpg?v=1714646249 WhispAir Super Silent Acoustic Ducting (black) https://www.criticalmasssystems.co.uk/products/green-hosepipe-30m 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/HOSE-GC_550x600_72a5ba89-72be-42d8-868e-43f840166950.jpg?v=1714647772 Green Hosepipe 30m https://www.criticalmasssystems.co.uk/products/systemair-rvk-fans 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/RVK200-A1.png?v=1714647836 Systemair RVK fans https://www.criticalmasssystems.co.uk/products/jiffy-pro-7-8l-coco-brick 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/shopping.jpg?v=1714649778 Jiffy Pro 7 8L Coco Brick - single brick https://www.criticalmasssystems.co.uk/products/securo-clamp-metu 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/securo-metu-clamp.png?v=1714650460 Securo Clamp (Metu) https://www.criticalmasssystems.co.uk/products/hot-stuff-oil-filled-radiator 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/misc-electrical-products-2000w-oil-filled-radiator.jpg?v=1714651298 Hot Stuff Oil Filled Radiator https://www.criticalmasssystems.co.uk/products/lighthouse-2m-x-25m-pea-bean-green-netting 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/pea-and-bean-netting.jpg?v=1714652148 Lighthouse 2m x 25m pea & bean green netting https://www.criticalmasssystems.co.uk/products/staple-gun-compact 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/dekton-staple-gun.jpg?v=1714652872 Staple Gun - compact https://www.criticalmasssystems.co.uk/products/mdf-blank-socket-board-16-way 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/side-16-way.jpg?v=1714658498 MDF Blank Socket Board - 16 way https://www.criticalmasssystems.co.uk/products/growers-ark-coco-sw 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/coco-bloomNEW_800x_852b62a6-f50b-4222-a58d-90f640aea592.jpg?v=1714668310 Growers Ark Coco Nutrients https://www.criticalmasssystems.co.uk/products/ivxx-heavy-duty-solo-lighting-timer 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/420-timer-box.jpg?v=1714732399 IV:XX Heavy Duty Solo Lighting Timer https://www.criticalmasssystems.co.uk/products/hailea-ds2000-pump 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/Hailea-ds2000-pymp.jpg?v=1714733118 Hailea DS Series Pumps https://www.criticalmasssystems.co.uk/products/bud-blood 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/bud-blood-500g.jpg?v=1714733372 bud blood https://www.criticalmasssystems.co.uk/products/revive 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/Revive-4L.jpg?v=1714734021 Revive https://www.criticalmasssystems.co.uk/products/canna-mono-nitrogen 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/canna-mono-nitrogen.jpg?v=1714734494 Canna mono nitrogen 1l https://www.criticalmasssystems.co.uk/products/funnel-set-x4 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/funnel-set-large.jpg?v=1714734705 Funnel set x4 https://www.criticalmasssystems.co.uk/products/gas-daynight-temperature-controller 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/Day-Night-Controllers-Temp.png?v=1714734990 G.A.S Day/Night Temperature Controller https://www.criticalmasssystems.co.uk/products/gas-ec5-controller 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/EC5.png?v=1714735121 G.A.S EC5 controller https://www.criticalmasssystems.co.uk/products/gas-enviro4-fan-controller 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/Enviro-V4.jpg?v=1714735904 G.A.S ENVIRO4 FAN CONTROLLER https://www.criticalmasssystems.co.uk/products/cultiwool-rockwool-slabs 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/cultiwool-slab.png?v=1714736075 Cultiwool Rockwool Slabs https://www.criticalmasssystems.co.uk/products/cultiwool-huge-block-6-inch 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/cultiwool-6-inch-block.png?v=1714736269 Cultiwool Huge Block 6 inch https://www.criticalmasssystems.co.uk/products/plug-in-pro-rooting-blocks-104 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/plug-in-pro-2.jpg?v=1714737076 PlugLife peat rooting blocks (104) https://www.criticalmasssystems.co.uk/products/terp-booster 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/Terp-Booster-1L-1200px-jpg.jpg?v=1714737407 Terp Booster https://www.criticalmasssystems.co.uk/products/gorilla-2kw-orange-heater 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/Gorilla-Orange-Heater.jpg?v=1714737713 Gorilla 2kw Orange Heater https://www.criticalmasssystems.co.uk/products/winterfrost 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/49e8a858b4fb94c5b8fcd91899b99e7ffb6d4ed2.jpg?v=1714737832 Winter Frost https://www.criticalmasssystems.co.uk/products/great-white-shark-mycorrhizae 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/Great-White-4oz.jpg?v=1714738001 Great White Shark Mycorrhizae https://www.criticalmasssystems.co.uk/products/cha-ching-450g-1lb 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/FF-ChaChing-pop.jpg?v=1714738199 Cha Ching https://www.criticalmasssystems.co.uk/products/ivxx-garden-twist-tie-wire 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/twist-tie-wire_600x600_6235eb10-d74d-4f2f-8d1d-1a382a7f8989.png?v=1715257007 IV:XX Garden Twist Tie Wire https://www.criticalmasssystems.co.uk/products/adjustawatt-720w-led-no-ballast 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/EskimoST-adjusta-watt-retro-720-watt-led-EskimoDivider_1.jpg?v=1715342273 Adjustawatt 720w led - no ballast https://www.criticalmasssystems.co.uk/products/lumii-black-720w960w-led 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/split-main.jpg?v=1718617480 Lumii Black 720w/960w LED https://www.criticalmasssystems.co.uk/products/biodor-control-cnb 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/Biodor.jpg?v=1718716669 Biodor Control CNB https://www.criticalmasssystems.co.uk/products/t-piece-10-metal-work 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/ducting_t_piece.png?v=1719315108 Ducting T-piece https://www.criticalmasssystems.co.uk/products/flower-bomb 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/flower-bomb-1l.jpg?v=1719916959 Flower Bomb https://www.criticalmasssystems.co.uk/products/og-rapid-flower-bud-hardener-1l 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/OG-flower-hardener.jpg?v=1719917280 OG Rapid Flower & Bud Hardener - 1l https://www.criticalmasssystems.co.uk/products/rox-pgr-flower-hardener-1l 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/ROX-PGR-Hardener.jpg?v=1719917437 ROX Flower Hardener 1l https://www.criticalmasssystems.co.uk/products/ecothrive-trace-mix 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/Ecothrive-Trace-group.jpg?v=1726833362 Ecothrive Trace Mix https://www.criticalmasssystems.co.uk/products/omega-black-720w-led-with-ballast 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/OMEGAc720w.jpg?v=1745932951 Omega Black 720w LED Grow Light https://www.criticalmasssystems.co.uk/products/master-trimmer-mt-dry-100-lite 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/MT100_Square-01.jpg?v=1764686846 Master Trimmer - MT Dry 100 Lite https://www.criticalmasssystems.co.uk/products/evolution-clip-on-ec-fan 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/EC-BREEZE-2.jpg?v=1764688572 Whispair EC Breeze 6" Oscillating Clip Fan https://www.criticalmasssystems.co.uk/products/phytocopy-smart-rooting-hydrogel 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/nutrients-phyto-copy-cloning-gel-1199576886.jpg?v=1768919945 PHYTOCOPY Smart Rooting Hydrogel https://www.criticalmasssystems.co.uk/products/sonic-air-pro-replacement-disc-10-pack 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/sonic-air-disc.jpg?v=1769780740 Sonic Air Pro replacement disc 10 pack https://www.criticalmasssystems.co.uk/products/solar-tech-lite-720w 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/solar_tech_lite_720w_led.webp?v=1773754611 Solar-Tech Lite 720w https://www.criticalmasssystems.co.uk/products/master-trimmer-mt-dry-200 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/master-trimmer-dry-mt-200.jpg?v=1783418249 Master Trimmer MT Dry 200 https://www.criticalmasssystems.co.uk/products/ac-infinity-controller-ai-environmental-controller-ai-powered-learning-and-dynamic-level-adjusting-for-uis-and-third-party-devices-dual-zone-vpd-temperature-and-humidity-bluetooth-wifi-app 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/AC-Infinity-Controller-AI.jpg?v=1783431113 AC INFINITY CONTROLLER AI+ Environmental Controller, AI-Powered Learning and Dynamic Level Adjusting for UIS and Third-Party Devices, Dual-Zone VPD, Temperature and Humidity, Bluetooth + WiFi App https://www.criticalmasssystems.co.uk/products/ac-infinity-controller-ai-with-co2-sensor 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/CONTROLLER_AI-CO2_IMAGE-1.jpg?v=1783431116 AC INFINITY CONTROLLER AI+ with CO2 Sensor https://www.criticalmasssystems.co.uk/products/ac-infinity-controller-69-pro 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/ac-infinity-controller-69-pro-1.jpg?v=1783432154 AC INFINITY CONTROLLER 69 PRO https://www.criticalmasssystems.co.uk/products/ac-infinity-controller-69-pro-1 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/ac-infinity-controller-69-pro-1_ec12e9ac-e21f-439c-b317-3e628ddc6863.jpg?v=1783433158 AC INFINITY CONTROLLER 69 PRO+ https://www.criticalmasssystems.co.uk/products/ac-infinity-cloudline-pro-s6-quiet-inline-duct-fan-system-with-speed-controller-6-inch 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/StorePhoto1__63850.jpg?v=1783436609 AC INFINITY CLOUDLINE PRO S6, Quiet Inline Duct Fan System with Speed Controller, 6-Inch https://www.criticalmasssystems.co.uk/products/ac-infinity-cloudline-pro-s4-quiet-inline-duct-fan-system-with-speed-controller-4-inch 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/StorePhoto1__33589.jpg?v=1783436632 AC INFINITY CLOUDLINE PRO S4, Quiet Inline Duct Fan System with Speed Controller, 4-Inch https://www.criticalmasssystems.co.uk/products/ac-infinity-cloudline-pro-s8-quiet-inline-duct-fan-system-with-speed-controller-8-inch 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/StorePhoto1__40382.jpg?v=1783437594 AC INFINITY CLOUDLINE PRO S8, Quiet Inline Duct Fan System with Speed Controller, 8-Inch https://www.criticalmasssystems.co.uk/products/ac-infinity-cloudline-pro-s10-quiet-inline-duct-fan-system-with-speed-controller-10-inch 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/StorePhoto1__28405.jpg?v=1783438658 AC INFINITY CLOUDLINE PRO S10, Quiet Inline Duct Fan System with Speed Controller, 10-Inch https://www.criticalmasssystems.co.uk/products/ac-infinity-cloudline-pro-s12-quiet-inline-duct-fan-system-with-speed-controller-12-inch 2026-07-07T20:22:51+01:00 daily https://cdn.shopify.com/s/files/1/0397/1383/3127/files/StorePhoto1__06288.jpg?v=1783439509 AC INFINITY CLOUDLINE PRO S12, Quiet Inline Duct Fan System with Speed Controller, 12-Inch