H2Flow Flow Meter/Check Valve [FlowVis, Jandy/Praher Retrofit] (FVJ-R-15) claytonlambert When an existing air control

When an existing air control becomes stiff

the system can lose the clean

or no longer clears collected water effectively

Filter cartridge for compatible C-4301 and PMT27

It has to match how the spa was designed to perform

H2Flow Flow Meter/Check Valve [FlowVis, Jandy/Praher Retrofit] (FVJ-R-15) claytonlambert When an existing air controlThe 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