Johnson Pump 1000GPH Ultima Combo Pump 3/4" Hose Dura Port

The Johnson Pump 1000GPH Ultima Combo Pump 3/4" Hose Dura Port is a submersible bilge pump engineered for reliable automatic water removal in marine environments. Built for anglers, boaters, and cruising enthusiasts who demand dependable performance in unpredictable conditions, this 12V system combines proven cartridge pump technology with an intelligent electronic switch for hands-free operation. Whether you're running offshore charters, tournament fishing, or extended cruising, automatic bilge protection is non-negotiable—and this pump delivers proven reliability when it matters most.

The Ultima Combo pairs Johnson's cartridge bilge pump design with the non-clogging Ultima Switch electronic control system, eliminating float-switch hang-ups and false alarms that plague traditional mechanical switches. The 1000 GPH capacity handles routine bilge water, minor leaks, and washdown discharge efficiently without drawing excessive battery current. The 3/4" hose port accepts standard marine bilge hose, enabling straightforward deck or through-hull discharge routing on vessels up to roughly 35 feet. Compact dimensions (7 x 4 x 8 inches) and lightweight construction (1.1 lbs) allow flexible installation in tight bilge spaces, engine bays, or water tank applications where space is limited.

This pump is ideal for center console boats, fishing platforms, cruising sailboats, and trawlers where automatic bilge protection prevents costly water damage and hull degradation. Installation requires 12V DC power, a ground return, and a discharge hose—most boatyards can install in under an hour. The electronic Ultima Switch activates only when water reaches the sensor, reducing parasitic battery drain compared to float-switch designs. Pair this with a through-hull fitting and appropriate hose clamps for a professional, Coast Guard-compliant bilge system that works silently around the clock.