Tecmark Pressure Switch [Balboa 2 PSI] (3903-EADE) poolguard The Grundfos 10-0138-K circulation pump

The Grundfos 10-0138-K circulation pump is designed for compatible circulation applications and features 230V operation

The HPX11023564 is a practical replacement for compatible Hayward HeatPro heaters that need renewed fan-motor performance and cleaner long-term operation

A leaf trap like this is useful because it helps catch larger debris before it reaches downstream cleaner or suction components

this Waterway top load cartridge filter is a practical option when a 25 square foot filter with bypass valve and 2 inch plumbing compatibility is needed

Tecmark Pressure Switch [Balboa 2 PSI] (3903-EADE) poolguard The Grundfos 10-0138-K circulation pumpTecmark Pressure Switch [Balboa 2 PSI] (3903 EADE) 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