Dial 1541 Power-Clean Mineral Scale Purge Pump Eliminations System, 115V BRAND NEW! THE BOX WAS OPENED AND INSPECTED. Installs alongside the existing cooler pump. Test Button Includes mesh screen, mounting bracket, hose and cooler drain adapter. 115V; ETL-recognized. The best way to keep your cooler clean has always been to install a bleed-off system which drains off a percentage of water while the cooler is in operation. Power-Clean will save money and conserve water by automatically flushing your cooler clean every 8 hours of existing cooler pump operation. Once installed in the pan of the cooler, Power-Clean automatically cycles every 8 hours of cooler pump operation to empty the water and replenish the cooler with fresh water. The cooler capability is never interrupted. Replacing the cooler water on a regular basis is beneficial by removing mineral scale build-up and bacterial growth. Power-Clean eliminates the need for a bleed-off and the use of cleaners or harsh chemical additives. Voltage: 115V Mineral and scale purge pump eliminations system Installs alongside regular cooler pump to automatically flush dirty water from evaporative cooler after every 8 hours of operation Prevents scale and mineral build up Includes mesh screen, mounting bracket, drain hose and drain adapter For use with residential and commercial roof-top and window-mount coolers Motor has thermal overload protection and a flame-retardant housing for safety Regular pump attaches to the purge pump to activate the timer.