The Intex 3000 GPH Sand Filter Pump with Krystal Clear Saltwater System provides cool, refreshing, and clearer water with less hassle every swim season. The sand pump features a powerful motor with 6-function controls and a built-in automatic timer. With the Hydro Aeration Technology, your pool will sure to have healthier water with improved circulation. Designed for use with above-ground swimming pools and includes a strainer basket to prolong the sand life for an easier clean. The saltwater system's unique 2 stage technology uses an E.C.O. (electrocatalytic oxidation) process designed specifically for above-ground pools. To begin the E.C.O. process, a small amount of salt is deposited into your pool. The electrolyte cell in the system then uses the salt to produce sodium hypochlorite. This results in cleaner, gentler water for you and your family to enjoy. Spend more time relaxing in your above-ground pool and less time cleaning it with the Sand Filter Pump and Krystal Clear Saltwater System from Intex.