Description: 【Compatibility】: This flow switch is designed to seamlessly integrate with salt pool systems, for models 520736, IC-20, IC-40, IC-60, and IC-15 【Sensitive Detection】: Specifically addresses water flow issues in salt pools. The red and blue wires are used for detecting water flow; please follow the wiring instructions carefully as connection methods may vary by model 【Easy Connection】: The replacement kit includes closed-end connector cap, an O-ring, and a connecting nut; four button connector provide waterproof and moistureproofs connections. An arrows on the switch indicates water flow direction for correct installation 【Material】: Made from pp with a wire length of 350mm. Comes complete with set including PTFE tape for added convenience in installation 【Easy to Install】: This water flow sensors are designed to be plug and play and easy to install Specification: Material: PP Size Chart: Cable Length: 35cm/13.78inch Package Includes: 1 Set Flow Switch Assembly   Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.