Automatic Bilge Pump 1100 Gph 12vBilge pumps are equipped with a built in electric controlled snap switch making it fully automatic. No float switch is needed and no power is used until the pump turns on when the water level rises. These pumps are durable and easy to install, and they offer boaters a sleek new design that has been tested to be reliable, efficient, and automatically operative in harsh saltwater and freshwater uses. Equipped with stainless steel shaft 316, and high