These diffusers offer greater unit capacity over small diameter diaphragm coarse bubble diffusers at a lower cost. They feature a high-strength ABS body with NPT(M) connections. The EPDM membrane is locked in place with an engineered retaining ring to prevent blowout.
Replace small diameter coarse bubble diffusers with EDI PermaCap 5 diffusers for increased air capacity and greater oxygen transfer. A one-to-one change out lets you use up to 4 times more blower capacity with no pressure increase.
Fine bubble diffusers improve oxygen transfer efficiency even further; however, since fine bubble diffusers use less air per unit, additional diffusers will have to be added to use the blower’s existing output and to provide adequate mixing. Before making a conversion from coarse bubble to fine bubble, we recommend you contact USABlueBook for more information.