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 chlorination system. 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 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 monitors water flow and temperature only for Intellichlor salt systems and does not measure or adjust salinity levels. 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 wire connectors. Color: As shown in product image Material: Plastic Package Contents: 1 x flow switch set Note: Color may vary slightly due to screen settings and lighting conditions. Measurement tolerance: ±1–3 cm.