High capacity submersible bilge pump with double insulated dual water / air-cooled motors manufactured specifically for marine use to give reliability and high performance. This pump is ignition protected and will not burn out if run dry for short periods. Featuring moisture tight wiring, anti-airlock feature, stainless steel shaft and Rule’s exclusive Teflon seals. The pump includes a snap on strainer base for easy cleaning and fitting and stainless mounting screws and a clip to secure a float switch to the pump. A Rule float switch s required to operate this unit automatically. Hose outlet suits 28mm (1 1/8″).