Compatibility: Flow switch compatible with Intellichlor salt chlorinator models IC-15, IC-20, IC-40, and IC-60. Replaces part number 520736. Designed to protect your salt and chlorine system. Built for durability in all weather conditions. Easy Connection: Flow switch features four button connectors, waterproof and moisture-resistant design. Wires connect easily at both ends. Includes waterproof sealing tape to prevent leaks. Arrow marking on the switch indicates correct water flow direction for proper installation. Sensitive Detection: Red and black/blue wires detect water flow. White and green wires detect temperature. This product addresses only water flow and temperature detection for the Intellichlor salt system. It does not measure or adjust salinity and will not resolve low salt readings. Easy Installation: Compatible with 2-wire, 3-wire, and 4-wire chlorine cells. Wires are pre-stripped for quick connection. Installation typically takes only a few minutes to clear the “no flow” warning light. What’s Included: 1 x flow switch, 1 x waterproof sealing tape, 4 x button connectors. Color: As shown in product image Material: Plastic Package Contents: 1 x flow switch set Note: Color appearance may vary slightly due to lighting and screen settings. Measurement tolerance is ±1–3 cm.