EasyPro Self Weighted Rubber Membrane Air Diffuser – 6" – 1/2" npt
An EPDM Rubber Membrane Air Diffuser is incredibly strong and ideal for pond aeration, circulation and destratisfying applications. Unlike air stones, these diffusers are easy to clean.
Features:
These EPDM rubber air diffusers are incredibly strong and are ideal for pond aeration, circulation and destratisfying applications
Self weighted design the RAD650W will sink to the pond bottom
Unlike air stones these diffusers are easy to clean
In testing they produce a slightly larger air bubble than air stones which translates into less oxygen transfer into the water, so for fish holding tanks, raceways, fish production ponds, etc. we recommend air stones
An excellent choice for pond and water garden aeration since they actually produce more circulation and water movement
Additional Information:
Dimensions 1 1/5" diameter 6" long
Inlet1/2" npt
Recommended Air flow 0.4 cfm
Maximum Air Flow 1.7 cfm 
