AquaStar PS10 PureStar Corona Discharge Ozone System 1 GPH - Introducing the AquaStar PureStar Corona Discharge Ozone System - the ultimate solution for crystal clear, healthy pool water. With its advanced ozone injection technology, the PureStar is able to eliminate contaminants and reduce chlorine use, resulting in a more natural and refreshing swimming experience. Suitable for both retrofit and new construction, the PureStar features a smart vacuum controlled activation system that not only self-cleans to prevent calcium build-up, but it also makes installation a breeze - no plumbing or bypass required. Plus, the PureStar is energy-efficient, only requiring a minimal increase in total system pressure of 2-5 PSI. With the ability to produce up to 1 gram of ozone per hour, the PureStar is suitable for treating pools up to 40,000 gallons. Its variable flow restrictor adjusts to the system’s flow rate to minimize pressure drop and save energy when used with a variable speed pump.