Compatibility: Flow switch compatible with Intellichlor salt chlorinator models IC-15, IC-20, IC-40, and IC-60. Replaces part number 520736. Protects your salt chlorine generator. Designed for durability in all weather conditions. Easy Connection: Flow switch features 4 push-button wire connectors, waterproof and moisture-resistant design. Includes waterproof sealing tape to prevent leaks. Arrow marking on the switch indicates water flow direction for correct 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 Intellichlor systems and does not measure or adjust salinity. It 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 Push-Button Connectors. Color: As shown in photo Material: Plastic Package Contents: 1 x Flow Switch Note: Color may vary slightly due to screen settings and lighting conditions. Measurement tolerance: ±1–3 cm.