Keep your above ground pool water clean, soft, and refreshing with the Intex Krystal Clear Saltwater System. Its unique 2 stage technology uses an E.C.O. (electrocatalytic oxidation) process in which water molecules are split into highly powerful oxidants to destroy organic contaminants, such as bacteria and algea. Next, the amount of natural chlorine generated by this saltwater system is greatly reduced, which results is clean water without the potential harsh side effects of packaged pool chemicals. The Intex Krystal Clear Saltwater System requires a filter pump with a flow rate between 700 3,000 GPH and is for use with a maximum pool size of 15,000 gallons. Provides sanitized and sparkling, chemical free pool water Replace dangerous, packaged chlorine with safe, natural, environmentally friendly, pure salt No more red eyes or adversely affected hair, swimsuits, or pool liners 3 self clean modes: 6, 10, and 14 hour cycles with 24 hour timer Requires a filter pump with a flow rate between 700 3,000 gph (sold separately) Redesigned control panel with display, easy access buttons, and added power button for convenience Sleek and compact casing Voltage: 110 120 volts with GFCI Chlorine output: 12 gallons per hour Max pool size: 15,000 gallons