PresAir Trol Tinytrol Pressure Switch [21A] [1/8" MPT] [SPDT] [2 PSI] (TNP-111R-2PR) lightingparts That keeps the repair focused

That keeps the repair focused and avoids replacing a larger control assembly unnecessarily

Consistent installation bases help maintain long-term system stability

surface cleaning can feel less consistent than it should

This type of part is especially useful when the keypad hardware remains operational but the face overlay has deteriorated through regular use

PresAir Trol Tinytrol Pressure Switch [21A] [1/8" MPT] [SPDT] [2 PSI] (TNP-111R-2PR) lightingparts That keeps the repair focusedThe PresAir Trol TinyTrol pressure switch is built for compatible systems that use a 1 8 inch MPT connection and need an SPDT switch rated at 21 amps with a 2 PSI operating point. Pressure switches like this are useful because they help confirm the proper pressure condition before the connected equipment operates the way it should. This model is especially valuable when the original switch no longer reacts accurately, causes intermittent operation, or