Tecmark 4037P Replacement Pressure Switch – Hot Tub, 21A SPST, 1/8" MPT R0366900 Features: Uses 3-Inch diameter Tricolor

Features: Uses 3-Inch diameter Tricolor S tablets

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Val-Pak V36-120 PacFab 2" Slide Valve Stainless Steel E-Clip

Tecmark 4037P Replacement Pressure Switch – Hot Tub, 21A SPST, 1/8" MPT R0366900 Features: Uses 3-Inch diameter TricolorProduct Description The Tecmark 4037P Replacement Pressure Switch is designed for reliable performance in hot tubs, spas, and pool equipment. Built with durable plastic housing, this switch ensures accurate water pressure monitoring and dependable system control. Model: 4037P Rating: 21A, SPST (Single Pole Single Throw) Connection: 1 8" MPT (Male Pipe Thread) Application: Ideal for hot tubs, spas, and pool systems requiring precise pressure