Compatibility: Flow switch compatible with Intellichlor salt chlorinator models IC-15, IC-20, IC-40, and IC-60. Replaces part number 520736. Protect 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 construction. Includes waterproof sealing tape to prevent leaks. Flow direction indicator on the switch ensures correct installation. Sensitive Detection: Red and black/blue wires detect water flow. White and green wires detect temperature. This device monitors only water flow and temperature 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. Pre-stripped wires simplify setup. 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 Note: Color may vary slightly due to screen settings and lighting conditions. Measurement tolerance: ±1–3 cm.