Tecmark Pressure Switch [Balboa 2 PSI] (3903-EADE) inletoutlet 1-1/2 inch male pipe thread

1-1/2 inch male pipe thread connection

Improves control convenience and schedule accuracy

A replacement like this is especially useful when the goal is to restore both protection and a more polished service appearance around the pack

Pool Tool part 138 for easy identification

Using the proper threaded DPDT latching model helps keep the original control design intact

Tecmark Pressure Switch [Balboa 2 PSI] (3903-EADE) inletoutlet 1-1/2 inch male pipe threadTecmark Pressure Switch [Balboa 2 PSI] (3903 EADE) is a Tecmark replacement pressure switch used in compatible spa and hot tub control systems. Pressure switches help monitor water flow or pressure conditions so equipment can operate with the intended safety logic and control response. A failing or mismatched pressure switch can contribute to heating errors, equipment interruptions, or unreliable system operation. This replacement is intended for