H2Flow Flow Meter/Check Valve [FlowVis, Jandy/Praher Retrofit] (FVJ-R-15) mazzei and this Intermatic new-style version

and this Intermatic new-style version is a WG1573-10D model designed for 208 to 277 volt applications using the same reference

When the working cartridge has become dirty

Helps support cleaner contact with the pool surface

Twin roto smooth threaded design in stainless and black

this Waterway grate provides a practical option for achieving a more refined visual match with the surrounding surface

H2Flow Flow Meter/Check Valve [FlowVis, Jandy/Praher Retrofit] (FVJ-R-15) mazzei and this Intermatic new-style versionThe H2Flow FlowVis flow meter and check valve is designed for compatible Jandy and Praher retrofit plumbing applications where both flow monitoring and check valve protection are needed. A combined flow meter and check valve is useful because it helps show system flow rate while also helping reduce the chance of backflow. This replacement is especially useful when the original assembly is inaccurate, leaking, sticking, damaged, or no longer operating