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RAD4 Rubber Membrane Air Diffuser – 4" – 1/4" – 3/8" barb

SKU RAD4 Category


These EPDM rubber air diffusers are incredibly strong and are ideal for pond aeration, circulation and destratisfying applications Unlike air stones these diffusers are easy to clean


RAD4 Rubber Membrane Air Diffuser – 4″ – 1/4″ – 3/8″ barb

  • “Alumina” air stones – three times stronger than white silica air stones! Produces a finer bubble with no increase in pressure
  • Inlet fittings are set into the body of the diffuser, making them much less likely to break or twist loose
  • Higher density means self weighting
  • Cleanable with muriatic acid or chlorine
  • More resistant to ozone
  • Creates finer bubbles for increased aeration efficiency with no increase in pressure

Additional Information

Dimensions 1 1/2″ diameter 4″ long
Inlet 1/4″ – 3/8″ barb
Recommended Flow Rate .2 cfm
Maximum Air Flow 1.1
Weight 2