Dual & Quad Disc 9 in. Rubber Membrane Diffusers. These will really circulates your pond or lake!
These rubber membrane diffusers can generate a ton of air! What's even better is that this is a low psi design, which means your windmill or electric aerator doesn't have to struggle to open up the perforated slits like it would with some rubber membranes on the market.
This Dual or Quad Disc 9 in. membrane are used in the water treatment industry to really move the water through it's precision perforated slits. Unit comes with a backflow valve and 1/2 in. fittings to plug into your 1/2 in. airline. Rated for up to 8.5 CFM and perfect for lakes or ponds, especially where you're only running one diffuser.
These diffuser also comes with a base that can be filled with sand or gravel so it sinks to the bottom of your pond.
ARS0194: Dual Disc Rubber Membrane Diffusers with Base
ARS0274: Dual Disc Rubber Membrane Diffuser with Base and Risers
Self-sinking bases
ARS0391: Double Disc 9 in. Rubber Membrane Diffuser with Self-Sinking Base
ARS0450: Four Disc 9 in. Rubber Membrane Diffuser with self-sinking base
ARS0391 & ARS0450 Features:
- Design to sink without adding rock or sand to your diffuser base
- Heavy gauge metal with textured powder coat finish.
- Low psi self cleaning diffusers
- Rope holes to allow easy setting of diffuser
- Backflow valve to prevent water entering the airline
