A marine pump is a pump used on watercraft. From there, the types of marine pumps vary, depending on their application. A bilge pump (select from freshwater or saltwater applications) is a centrifugal pump that sends bilgewater overboard to keep the boat lighter and riding higher in the water. A diaphragm pump sends freshwater from an onboard storage tank to the galley, head and shower. Piston bumps deal with the sewage on the boat. We also have circulation pumps for livewell/baitwell tanks. Whatever your onboard water pumping and pump accessory needs, we’ve got you covered, captain!