This part is a Pressure or Flow Switch for a Hayward HeatPro Pool Heater.. some of the heater model numbers this fits are HP20654T, HP21104TC, HP21404T, HP21124T..
Note: This pressure switch is not a thread in type it is made be mounted through a hole with a nut to hold the switch to a bracket and a tube plugged into the bottom barb..
Pressure, Switch, Raypak, 105B, 185, 130A, 207A, R185A, 1.75psi, 52554 , 6234-37 , 840891003977 , RAY-151-3716,47-197-1462,006737F,gas,heater
