Johnson Pump 1600 GPH Bilge Pump 1-1/8" Hose 12V [16004-00]Heavy Duty Bilge Pump 1600 series 12v: The best choice when you are looking for high performance, heavy duty pumps designed to meet and exceed the tough demands of commercial and recreational duty. This pump has a liquid cooled, 12 pole motor with double ball bearings for extended service life. The 2200 motor is sealed off by a mechanical seal design, while the 1600 model has lipseal. The impeller is carefully designed and tested to maximize head and