Hayward W3AQR9 AquaRite Salt Water Chlorinator with 25K gallons Cell. Hayward Aqua Rite Electronic Chlorine Generators (also known as salt chlorinators) are the largest selling system in the world. They automatically produce pure chlorine using a low concentration of salt dissolved in the pool water to produce upto 1.45 lbs of chlorine daily, enough for all residential pools upto 25,000 gallons. They are also NSF certified and approved for use on commercial and public pools. They easily install on standard filtration systems, both for new construction and on existing pools. Features: Works on pools upto 25,000 Gallons Safe low-voltage electrical charge turns salt into chlorine Adjust your chlorine levels to pool demand for chlorine Adjust chlorine output from 1 to 100 percent Soft, silky-smooth water No more chlorine odor, red eyes or itchy skin Reduces handling and storage of toxic chemicals NSF, CUL and UL approved Reduced Maintenance and Costs User-friendly monitor system with LED service alerts Easy to use; one dial adjusts chlorine output Low operating costs No need for additional plumbing or parts Perfect for new or existing pools and spas