4mm Air Line – Airline Tubing for DWC & RDWC
4mm Air Line – Airline Tubing for DWC & RDWC
Regular price
£0.30
Regular price
Sale price
£0.30
Unit price
per
Taxes included.
Shipping calculated at checkout.
In stock
Secure checkout
Order by 3pm Mon–Fri — we aim to post same day · FREE Express Delivery over £60 · 1–2 working days · Free Wembley pickup
- 14-day returns
- Price match promise
- Free Wembley store pickup
- Advice from the team: 020 3488 0419
Pairs well with
Description
Flexible airline that keeps oxygen flowing to your roots
This 4mm air line carries the steady stream of air from your pump to airstones and diffusers - the aeration that DWC, RDWC and other reservoir systems depend on to stop roots sitting in stagnant, oxygen-starved water. Poorly oxygenated solution is where root browning, slow growth and root rot start, so a reliable feed line matters more than its price suggests. The flexible, kink-resistant tubing routes cleanly around buckets and tanks and cuts to the exact length each site needs.
Key Benefits
- Standard 4mm bore fits common air pumps, airstones, non-return valves and manifolds
- Flexible and kink-resistant, so airflow stays constant around tight bends and bucket lids
- Cuts to length - run only as much line as each reservoir needs, with no wasted tubing
- Push-fit connection onto standard barbed outlets for a quick, secure seal
How to Use
- Cut the line to length with sharp scissors for a clean end that seats fully
- Push one end onto the pump outlet and the other onto the airstone or diffuser
- Fit a non-return valve in the run if the pump sits below water level, to stop back-siphoning
- Check the fit is snug enough to hold pressure without slipping during a run
