Aquarium Plumbing, PVC-U Aquarium Plumbing and Pond Plumbing.

Part Number:	0805
Item:	40mm DURSO AIR ADMITTANCE VALVE
Description:	40mm Durso air admittance valve. This unit fits inside a 40mm plain socket such as the top of the Durso tee section. By turning the black knob you allow air to be drawn into the Durso via a slot running down the thread. Removing the screw by 50% will then allow increased air flow via a further inlet. You will also require a tee, elbow and a length of pipe to make your Durso pipe. Will reduce noise through your overflow system.



Price Each:	£6.98 In Stock
Quantity: