Waterco Filter/Valve Air Release w/O-Ring (620221) mpindustries The Viton seal material

The Viton seal material

this diffuser helps restore dependable wet-end performance and contributes to a more confidence-inspiring repair overall

and this Magic Plastics UniBody version features a 1-1/2 inch union by 1-1/2 inch slip configuration with an 80 psi rating using the 0516-15 reference

Excellent choice for repair

Waterco Filter/Valve Air Release w/O-Ring (620221) mpindustries The Viton seal materialThe Waterco filter and valve air release with O ring is designed for compatible systems where controlled release of trapped air is needed as part of normal filter or valve service. An air release component is useful because it helps manage air buildup and supports smoother system startup or maintenance procedures. This replacement is especially useful when the original air release is leaking, sticking, or no longer sealing correctly around the O ring