Tecmark Pressure Switch [4037P SPST 1/8" MPT] (4037P) NuWhirl Supports cleaner and more dependable

Supports cleaner and more dependable chlorinator operation

O-rings can flatten

this foam washer helps restore cleaner valve support and contributes to a more dependable repair overall

A well-selected unit should preserve the original operating feel of the system rather than forcing a compromise that only partly fits the application

Tecmark Pressure Switch [4037P SPST 1/8" MPT] (4037P) NuWhirl Supports cleaner and more dependableTecmark Pressure Switch [4037P SPST 1 8" MPT] (4037P) is a Tecmark replacement pressure switch used in compatible spa and hot tub control systems. Pressure switches help monitor water flow or pressure conditions so equipment can operate with the intended safety logic and control response. A failing or mismatched pressure switch can contribute to heating errors, equipment interruptions, or unreliable system operation. This replacement is intended for