Zoeller Water Powered Battery Backup System

The Zoeller 540-0005 Flex is a water powered backup system. It does not require battery or AC power and works off of home water pressure. You must have city water (no well) to operate the pump. Can be installed in the horizontal or vertical position.|Water Powered. No batteries to maintain|Can be installed vertically or horizontally|Can be installed ion the rafters|Must be used with a municipal water supply|High capacity and high head