Low profile design for narrow bilges. Can be installed with horizontal or vertical outlet position. Flow rate of 500 US gals per hour and very low power consumption. Easy to clean with "twist lock" assembly/disassembly. Removable strainer is designed to leave a minimum water level 3/8" in bilge. Recommended optional extra - A non-return valve fitted in line stops water flowing back into bilge (LV1219 Non return valve) Can be used with Whale's BE9002 float switch or BE9003 Electric Filed Sensor Switch. GPH 500 Hose 3/4" Volts 12 Amps 2.6