Waterco Filter/Valve Air Release w/O-Ring (620221) lacoindustries This replacement is especially useful

This replacement is especially useful when the original gasket has flattened

Matching the correct crescent-style gray mini air control helps preserve intended fit and visual consistency in the installation

the replacement feels cleaner and less improvised

Replacing the set together can help restore proper fit and dependable suction-point coverage

Waterco Filter/Valve Air Release w/O-Ring (620221) lacoindustries This replacement is especially usefulThe 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