H2Flow Flow Meter/Check Valve [FlowVis, 2"–2-1/2" Spg, w/ Safety Flapper] (FV-C-S) switches Specialty screws like this are

Specialty screws like this are useful because impeller assemblies rely on correct threading to stay secure during rotation

A gasket like this is useful because it helps maintain the integrity of the cleaner assembly

Gray finish with foam insert

When the air side stops performing as expected

From a merchandising perspective

H2Flow Flow Meter/Check Valve [FlowVis, 2"–2-1/2" Spg, w/ Safety Flapper] (FV-C-S) switches Specialty screws like this areThe H2Flow FlowVis flow meter and check valve is designed for compatible plumbing applications where flow monitoring and one way flow protection are needed together. A combined flow meter and check valve is useful because it helps display flow rate while also helping prevent reverse flow through the line. This replacement is especially useful when the original assembly is leaking, sticking, inaccurate, damaged, or no longer performing correctly.