Tecmark TDI 1/8 Inch NPT Pressure Switch 3903BP

Connection: 1/8 Inch NPT Pressure Switch: SPST 3 Amp -  PSI Factory Adjusted - Set point can not be changed. 

We also offer the 3903-DF model that is field adjustable.

This also can replace pressure switches that operate at 1 Amp.

1/8 inch NPT threaded connector fits the 1/8 inch pressure switch tap on spa heater manifolds or on separate tailpieces that have the 1/8 inch pressure switch tap.

 This item is 3903BP or 3903-BP with fixed set point.

Need teflon tape? Best to wrap the threads of the pressure switch with teflon tape to assure a good seal at the pressure switch tap on the heater manifold.