Tecmark Pressure Switch For Hot Tub 3902Tecmark pilot duty adjustable hot tub heater pressure switch rated for 1 amp at 120 volts, 72VA pilot duty @ 24VAC. Details: Brand: Tecmarck Model: 3902 1 8" threads (3 8" actual O. D) 1 5 PSI adjustable 2 terminals no common Maximum 1A @ 120 VAC, 72 VA Pilot Duty @ 24VAC Also replaces: 3965, 36142, 3902, 3903, 34 0178, 6560 869. Product note: This hot tub pressure switch requires adjustment for the size and pressure of the specific hot tub it's being
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