UltraPure 1/2 lb Compression Check Valve (1008012) grasslin and PW133 compatibility give this

UltraPure 1 2 lb Compression Check Valve (1008012) grasslin and PW133 compatibility give this and PW133 compatibility give this part practical value because filter cartridges work best when the replacement matches the intended housing and operating application closely and dual voltage flexibility give this unit practical value because ozone systems work best when the replacement matches both the electrical setup and the intended equipment family Useful when the original check valve is leaking or sticking Check valves are useful because they help maintain one way flow and reduce the risk of unwanted reverse movement through the line