3/8″ Female Thread Mini Ball Air Valve

Economy Air Stones

Economy Blue 50mm Pond Air Stone ball fits standard 4-6mm airline.

It is important to remember that Air Stones, like many other products, only have a certain life span and will need replacing frequently to maintain optimum performance.

4 mm Air Line Non Return Valves, these simply fit in line and prevent water from the system back siphoning back into the Air Pumps if the power fails or when maintaining the system and the power is switched off.

These simple 4 mm Air Line Non Return Valves (check valves) are very important if you cannot mount your air pump above the water level in your system. Remember accidents can and do happen, don’t let it happen to you for the sake of a few pence, always have a few on hand as you never know when you may need them.

Fits all the 4 mm Silicon and clear Airline above.

Stainless Steel Air Taps

These 4 mm Stainless Steel Air Taps are extremely useful if you are intending to run an air-line ring the full length of your system where Air is required in the actual biological filtration systems.

Each 4 mm Stainless Steel Air Taps has its own 4 mm threaded end which can be screwed quite easily into PVC pipework etc. after pre-drilling which allows you to build your own tailor made distribution to supply air.