The Salt Chlorine Generator Cell EC-520555 is a high-quality pool equipment part designed specifically for Pentair IntelliChlor systems. This generator cell is compatible with the Pentair brand and is perfect for use in pools up to 40,000 gallons. With its manufacture part numbers of EC-520555, EC520555, and 520555, this salt chlorine generator cell ensures efficient and reliable water purification for your pool or spa.