Ask about GREEN MAN Systems - Air Kit 4
Going bigger? Want to power 4 Combi pots continuously? You’ll need the Air Kit 4, the Air Kit 2’s bigger brother, same variable control and silent running volumes but with more power. The 8 airlines running out of this unit is more than enough to get your plants fed and your reservoirs oxygenated. Comes with four 4” Airstones and 30m of 4mm Airline.
DELIVERY
- Mainland UK delivery only
- Orders under £90: £8.35 shipping.
- Orders over £90: free shipping.
- Orders are usually dispatched within 1–2 working days and sent on a next working day service after dispatch.
- Please allow up to 5 working days during busy periods, bank holidays, courier delays, or stock delays.
- If an order is urgent, customers should contact us before ordering.
- No international shipping at the moment
RETURNS
- Unused and unopened items can be returned within 14 days of delivery, provided they are in the original packaging and suitable for resale.
- Customers are responsible for return postage unless the item is faulty or incorrect.
- Returns can be started from your customer account on Hydro Hub.


