Compatibility Flow switch compatible with intellichlor salt chlorinator ic15, ic20, ic40, ic60 systems. Replacement number 520736. Protect your salt and chlorine equipment They are made to last in all weather conditions.Easy connection Flow switch with 4 button connections, waterproof and moisture proof, simply connect the wires at both ends. The switch comes with sealing tape, no leaks. On the switch indicates the direction of water flow for correct installation.Sensitive detection Red, blackblue line detects water flow. Whitegreen line detects temperature. This product only resolves the water flow and temperature issue in the Intellichlor salt system, and does not read salinity. This will not correct a low salinity reading.Easy installation Compatible with 2wire, 3wire, 4wire cell. The wires are stripped by the flow switch. It only takes a few minutes to get the no flow warning light to go out.What you get You get 1 flow switch, 1 waterproof sealing tape, 4 button connectionColor Photo colorMaterial PlasticPackage contents1 setflow switchOnly the above package contents, other products are not included.Note Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowable measurement error is13 cm.