Tecmark 3925 Universal Pressure Switch W/Brass Fittings (3925)

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The Tecmark 3925 Universal Pressure Switch W/Brass Fittings is a heater safety/control component used to verify proper water pressure or flow conditions before heater operation. Pr essure switches help protect heater equipment by preventing firing when flow is not adequate, and the electrical rating, switch action, connection type, and fitting style all matter when selecting a replacement. This part should be matched to the existing Tecmark switch, heater wiring, and pressure connection rather than chosen by appearance alone. Confirm the specification details (as listed in the title) and part number 3925 before installation. Replacement pressure switch for compatible pool and spa heater systems Helps confirm proper flow or pressure before heater operation Match amperage, switch type, and connection style to the original part Use care when servicing heater electrical and water-pressure components Reference part number 3925 to verify the correct Tecmark replacement Show more