CMP SEC-110-26 DEL AOP® 50 Ozone and UV-C Advanced Sanitizer System 50 GPM 240 VAC/60 Hz. The AOP 50 provides clean, clear, and safe water for pools up to 50,000 gallons through its robust, specially engineered design. By utilizing the combined power of Ozone + Germicidal UV Light, the AOP 50 delivers powerful sanitizing power to destroy 99.9% of harmful contaminants, including chlorine resistant microorganisms such as Cryptosporidium and Giardia. This Advanced Oxidation Process (AOP) unit has been tested and certified by the National Sanitation Foundation (NSF) under the NSF/ANSI Standard 50 pool equipment performance program. A Mixing De-Gas Vessel (MDV) is also available for this system to eliminate bubble noise and visibility.