Johnson Pumps of America 28512 Marine Pump Cartridge for 1000 GPH Motor
Mayfair Replacement Cartridge 1000 Replacement. Features Fully submersible Ignition protected 12 volt Available in automatic or manual operation Compression lip seals Dura-Port discharge ports 3/4 inch discharge only 100 percent factory tested Anti-Airlock protection Meet and exceeds NMMA, ABYC, ISO 8849, CE and USCG specifications Three year warranty.