Johnson high capacity submersible bilge pump. 252 LPM - Made in USA. Heavy duty, high capacity, high performance - 252 LPM - 12 volts The high capacity L4000 is the premier pump in our submersible bilge pump range. Featuring a robust motor design, mechanical shaft seal, high impact ABS plastic and unique threaded port design. THE L4000 WILL OUT PERFORM ANY OTHER COMPARABLE BILGE PUMP ON THE MARKET. Up to 252 LPM (litres per minute) - 4000 GPH (gallons per hour) Rating: 15 Amps Fuse size 25 Amps Liquid cooled bilge pump, 12-pole motor with double ball bearings for extended bilge pump service life. This pump model is sealed off by a mechanical seal that eliminates shaft wear and allows for service and replacement of the bilge pump. Includes a removeable check valve.