Tecmark Pressure Switch [3903-DF Adj SPST] (3903-DF) NuWhirl Replacement trap body for select

Replacement trap body for select Speck pump and leaf trap assemblies

Supports proper matching with S

Waterway Crystal Water long elbow

Helps manage flow through the feeder plumbing setup

which can make equipment renewal much simpler when the original unit is worn out or damaged

Tecmark Pressure Switch [3903-DF Adj SPST] (3903-DF) NuWhirl Replacement trap body for selectTecmark Pressure Switch [3903 DF Adj SPST] (3903 DF) 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