Please note: Slight color differences due to lighting and screen display variations 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 dangerous chlorine gas buildup. Proper installation is critical to avoid risk of gas accumulation in the pool plumbing system. Made from high-quality materials, the GLX-FLO flow switch is durable, resistant to wear, and designed for long service life. The sensor is sturdy and reliably monitors water flow rate to protect your pool system and equipment from damage. This flow switch is 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, OPT-F/S. Color: As shown Material: Plastic Package Contents: 1 x Flow Switch Assembly for Hayward with cable Note: The measurement allowance is +/- 1-3 cm. Only the items listed are included.