Pentair Fluidmaster Gray Autofill Valve (T40FG) matrix and this Balboa VL240 HJ81

and this Balboa VL240 HJ81 Overlay is designed for compatible Warm

It is intended for compatible Pentair configurations where the impeller must match the hydraulic design of the pump

The trap lid is a key access point for clearing debris from the pump basket area

Helps regulate spa air flow

Pentair Fluidmaster Gray Autofill Valve (T40FG) matrix and this Balboa VL240 HJ81For a clean repair, start with the correct part. Pentair Fluidmaster Gray Autofill Valve (T40FG) addresses a specific service point while preserving compatibility with the intended Pentair application. This gray Fluidmaster autofill valve helps automate pool water level replenishment, supporting steady fill operation when paired with a compatible autofill basin. It is useful when the existing component shows wear, damage, age related failure, or