Global Air Supplies – G.A.S. – started in extraction and has since taken on Nutriculture, so the range now covers both sides of a grow room: the air handling and the hydroponic systems.
Extraction and air handling
- AC inline fans – the straightforward option. Single or twin speed, reliable, cheapest per m³/h.
- Silenced and box fans – motor and impeller inside an insulated housing. Substantially quieter, which is what matters in a flat or a bedroom.
- EC fans – brushless motors with fully variable speed, far more efficient at part load and genuinely quiet turned down. See EC fans.
- Systemair RVK – the Swedish-built fans G.A.S. distribute in the UK.
- Controllers to drive fans on temperature or humidity rather than a fixed speed – see fan speed controllers.
The Nutriculture systems
Nutriculture is no longer a separate company – its product lines now sit under Global Air Supplies. The systems are unchanged and the spares still fit:
- Ebb & Flood (EF100, EF120, EF230, EF420, EF620) – tray-based flood and drain in five sizes. See flood and drain systems.
- Flo-Gro – their dripper system. See dripper systems.
- ATU auto top-up kit – keeps reservoir level constant without you topping it by hand.
- BubbleGen – oxygen water circulator for reservoirs. See air pumps and air stones.
The sister brands
Several ranges that used to sit under the Nutriculture name have their own pages: Origin Systems for their modern dripper systems, X-Stream for aeroponic propagation, Gro-Tank for NFT, Oxypot for DWC and Vitopod for modular propagators.
Sizing extraction
Work out the room volume in cubic metres and aim to change the air roughly once a minute, then add 25-50% for the resistance your carbon filter and ducting add. Fan and filter diameter must match.
Why buy Global Air Supplies from The Hydro Bros?
We are a hydroponics shop in Croydon and we size extraction and build these systems every day. Tell us the room dimensions and the lighting load. Discreet UK and European delivery, and excellent customer reviews on Trustpilot.
