6" Weighted Rubber Membrane Air Diffuser w/ 1/2" MPT Gamefish Pellets They offer the looks of

They offer the looks of a premium fountain without the high price tag

500 gph capacity

Outlet Sizes Max Flow EC1300 650 gallons w/ fish

so they won't leach any minerals into the water that can lead to algae growth

6" Weighted Rubber Membrane Air Diffuser w/ 1/2" MPT Gamefish Pellets They offer the looks ofThese EPDM rubber air diffusers are incredibly strong and very easy to clean. In testing, they produce a slightly larger air bubble than air stones or other diffusers, which means less oxygen transfer into the water. But their low cost and effortless setup makes them a terrific choice if you are simply trying to circulate or destratify pond water. Diffusers have 1 2" MPT connection. Use our #SS41238 adapter to attach to 3 8" airline. The 6" Diffuser