Four Disc 9" Rubber Membrane Diffuser with self-sinking base Decorative Fish 5/4" boards or composite for

5/4" boards or composite for the top

If you’re looking for a windmill that is authentic and makes a statement

These Windmill Aeration Systems include (qty 2) dual rubber membrane diffusers

Flow reduction disc to modify spray pattern height and diameter

Four Disc 9" Rubber Membrane Diffuser with self-sinking base Decorative Fish 5/4" boards or composite forFour Disc 9" Rubber Membrane Diffuser with Self Sinking Base Designed to sink without adding rocks or sand to your diffuser base Heavy gauge metal with a textured powder coat finish. Low psi self cleaning diffusers Rope holes to allow easy setting of each diffuser Backflow valve to prevent water entering the airline. You can also add our optional riser tubes to elevate your rubber membranes if you have a lot of mud and muck on the bottom of your pond