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Tecmark 3903 Pressure Switch 1 Amp 1-5 PSI

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Now: $24.77
RRP: $29.51


threaded connection pressure switchTecmark model 3903 universal pressure switch SPST 1 Amp rating. Works from 1-5 PSI (adjustable). Has 1/8 inch NPT/MPT pipe threaded connection.

Does not come with any screws.

This Model 3903 pressure switch means it is field adjustable vs. the 3903-BP that is factory adjusted and the set point cannot be changed on those.

pressure switches tecmark hottub

This 3903-DF is also the 1 amp adjustable version that works between 1PSI and 5PSI for standard hot tub application.

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.

Adjustable psi with flat blade screwdriver.

tecmark adjust pressure switch

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.

1-5psi switch

3903 / 3903-DF / 3903DF are the same switch type

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