Grid Controls Flow Switch [M 25] [25A] [115v] [1 1 2" Slip] (57 F3 2500 WHT) filterparts The six conductor design and The six conductor design and one to one connection layout are important details because control communication depends on the wiring path being correct from one end to the other A properly selected overlay helps support more intuitive operation and contributes to a cleaner looking panel A flow switch helps confirm water movement in a compatible system before connected equipment operates The higher amp rating gives this part practical value because some systems require a more robust switch than lighter duty control only versions