FloraFlex Big Mama Drip Kits - available now!

Our FloraFlex Big Mama drip kits feature some components from the US manufacturer FloraFlex including the impressive Floracap and the Grodan Big Mama 8" x 8" rockwool blocks. They are available in a range of sizes from 4 pot and 8 pot low pressure systems up to a huge 36 pot high pressure version. Growing with rockwool drip irrigation just got a whole lot better!

Big Mama FloraFlex drip systems

Introductory discount on Prima Klima Filters!

Prima Klima Eco filters now available at our Sheffield shop and online, Don't be fooled by the Eco name these filters use the same top quality carbon as used in the premium version so odour control is guaranteed, they just don't last quite as long - get 20% off all sizes and full kits with extractor fan and ducting etc.

Prima Klima Eco Filter - available now!

The Best LED Lighting Available - Huge Stocks

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NEW!!! - Introducing the Grodan 'Big Mama' rockwool blocks

After waiting many years for these huge rockwool blocks we can finally announce they are here and available now! Hugely popular in the USA these blocks are ideal for growing plants to full maturity check them out today.

Get 'Big Mamas' today!

Love hand watering? - Check out our hand water and hand water pro kits

Hand watering is the most common method used to irrigate pots of soil and coco, it's a great method but creates a couple of issues that growers need to overcome. Firstly run off is created by hand watering pots to the recommended 20-30% run off, leaving pots sat in this run off is bad news for your roots and can cause slow growth, both our hand water kits utilise baseline trays to allow run-off to collect in the baseline brain provided which pumps it to a separate waste tank or drain.

Secondly hand watering multiple pots is a pain, our hand water pro kits contain a pump, pipework and telescopic watering lance to make hand watering many pots a breeze! Not only is this a quick and easy method to water many pots it's also much better at hydrating all the coco/soil in a pot as the watering lance sprays out like a shower head - no dry spots in your coco!

Introductory offer! 20% off all soil or coco when you buy any hand water kit instore!!!!

Hand water kits here!

Find us....

Critical Mass Systems Sheffield

Unit 4, Holbrook Enterprise Park,


S20 3GL

Monday, Tuesday, Wednesday & Friday: 9AM - 6PM

Thursday 9AM - 7PM (Late Night)
Saturday: 10AM - 5PM
Sunday: 11AM - 4PM

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