Tecmark Pressure Switch [4037P SPST 1/8" MPT] (4037P) NuWhirl this foam washer helps restore

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

This in-ground skimmer basket includes an integrated handle for quick removal and cleaning while maintaining effective debris capture

OEM Pentair iS4 topside panel

and PJAN85-PAK4 compatibility

O-rings can flatten

Tecmark Pressure Switch [4037P SPST 1/8" MPT] (4037P) NuWhirl this foam washer helps restoreTecmark 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