Quick view Johnson Pump Cartridge Bilge Pump $33.91 Was: Now: $29.49 Mayfair Replacement Johnson Pump Cartridge Bilge Pump Johnson Pump Cartridge Bilge Pumps are direct replacements to the popular Mayfair Cartridge Bilge Pumps and are designed to make cleaning and maintenance easy! Johnson Bilge Pump Cartridges can be... Choose Options