Airmax® ProAir™-4 Diffuser Plates & Replacement Parts Replacement Part:ProAir™ Check Valve since the AquaBead itself was

since the AquaBead itself was an investment

and air will flow into the filter

1/2" 06507 93 GPH Pump 2

Its unique design prevents clumping and gives it the highest biofilm surface area of any product on the market

Airmax® ProAir™-4 Diffuser Plates & Replacement Parts Replacement Part:ProAir™ Check Valve since the AquaBead itself wasThe ProAir 4 Weighted Diffuser is for use with the Airmax Shallow Water Series Aeration Systems. The innovative sled design keeps the diffuser submerged while maintaining an upright position. The included check valve prevents back pressure on the compressor. Winterization Caps are recommended if you shut down your aeration system during the winter, as they prevent debris from entering the airline. Complete diffuser includes manifold with check valve,