Solaxx® Renaissance™ UV4000A 35K gals UV/Ozone Water Treatment System 220V 57W. Renaissance™ combines an Ultraviolet Sterilization Chamber with the power of pure oxygen (Ozone) to treat your water. These two naturally powerful processes eliminate 99.99% of all contaminants in water and reduce the use of pool chemicals up to 80%. No toxic chemicals are used, no metals or minerals, only pure light and pure oxygen.