Replacement diaphragm and assembly cartridges for the Pond Air 2 and Pond Air 4 from Aquascape. The replacement kit allows you to "rebuild" the compressor diaphragm after it has worn down with years of service. Keeps yopur aeration pump running at full capacity. Remember to clean your diffusers to avoid build-up that can cause back-pressure on your pump and also to ensure the diffusers are not in too deep which can overwork the compressor and reduce diaphragm life.

The repair kits come with full instructions and require no special tools to install.
 

Pond Air 2 Replacement Diaphragm Kit  - Model 75003
Pond Air 2 Replacement Diaphragm Kit (1/pkg)
Fits the Pond Air 2 Model #75000

Pond Air 4 Replacement Diaphragm Kit - Model 75004
Pond Air 4 Replacement Diaphragm Kit (2/pkg)
Fits the Pond Air 4 Model #75001