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. Proper installation is required to prevent accumulation of chlorine gas in the pool plumbing system. Premium Material & Excellent Performance: The GLX-FLO flow switch is constructed from high-quality materials for durability and long service life. It effectively monitors water flow rate to prevent chlorine buildup, protecting your pool and equipment from damage. Widely Compatible: This pool flow switch is compatible with all salt chlorine generator systems for Hayward Goldline. It serves as a replacement for use on the following chlorinators: 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: The package includes only the items listed above. Light reflection and different displays may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3 cm.