Hayward CAT Controller Rotary Flow Sensor – Genuine Replacement Part The Hayward CAT Controller Rotary Flow Sensor (SKU: CAX-20203) is an essential component designed for use with Hayward CAT Controllers in commercial and residential pool and spa automation systems. This sensor provides precise flow measurement, enabling accurate water chemistry control and system monitoring. ✅ Key Features: Authentic Hayward replacement rotary flow sensor – ensures compatibility and performance Designed specifically for CAT Controllers, supporting models including CAT 2000, CAT 4000, and compatible systems Accurately monitors water flow to help maintain optimal chemical dosing and system function Durable, corrosion-resistant construction for reliable operation in pool and spa environments Easy installation – direct replacement for worn or malfunctioning sensors 🎛️ Compatibility: Engineered for seamless integration with Hayward CAT chemical automation controllers. Verify compatibility with your specific CAT Controller model before ordering. 🛠️ Installation & Use: Disconnect power to the controller before servicing Remove the existing flow sensor and install the replacement in the same orientation Reconnect wiring per manufacturer instructions Restore power and test the system for proper flow detection 📦 Included: 1 x Hayward CAT Rotary Flow Sensor CAX-20203 Fits Hayward CAT Controllers. For optimal performance, always use genuine Hayward parts. Consult your system manual or contact a pool professional for installation guidance. 🛡️ Premier Pool & Spa is an authorized Hayward distributor – buy with confidence for fast shipping and expert support.