Fine Air Diffuser
Perfect for aerated bottom drains! Rubber Membrane Diffusers are considered to be one of the most economical and low maintenance air diffusers available. The rubber membrane has 10,800 holes which expand as air fills the membrane. Fine size microbubbles are released. The rubber membrane does not clog like air stones. Little or no maintenance is required. Our Rubber Membrane Diffusers are designed extra large to have very low back pressure so you also get the best performance from your air pump.