Please note: Slight color differences due to lighting and display settings may occur. This does not affect product functionality. GLX-FLO Flow Switch includes 1x GLX-FLO Pool Flow Sensor Assembly Kit. The kit includes a flow switch and cable. The GLX-FLO Flow Switch monitors water flow through the brine system to ensure chlorine generation only occurs when water is flowing, preventing the buildup of explosive chlorine gas in the pool plumbing system. Proper installation is essential for safe operation. Made from high-quality materials, the GLX-FLO flow switch is durable, resistant to wear, and designed for long service life. The sensor reliably monitors water flow rate to protect your pool system and equipment from damage. Compatible with all salt chlorine generator systems for Hayward Goldline, including: Aqua Rite Electronic Chlorine Generators (all models), Naturesoft Water Purification System (all models), Mineral Springs (all models), Aqua Trol Above Ground Pool Automation (all -HP models), and SplashCLEAR (all models except -RJ versions). Designed to fit Hayward models GLX-FLO-RP, GLX-FLO-RP2, GLX-FLO-RP3, GLX-FLO-RP4, GLX-FLO-HP, Q-12DS-C2, and OPT-F/S. Color: As shown Material: Plastic Package Contents: 1 x Flow Switch Assembly for Hayward with cable Note: Measurement error allowed is +/- 1-3 cm.