Swimables Thermal Regulator Kit Compatible with All Pentair Mastertemp and Starite Pool Heater 77707-0010 - Temp Regulator Compatible with Pentair Master Temp Parts and Sta Rite Low Nox Parts

How to Test: If you suspect the thermal regulator to be faulty simply place the thermal regulator in water heated to at least 130 degrees Fahrenheit. The regulator should open.Compatible...