Johnson Pump Twin Port 500GPH Livewell Aerating Pump - 12V

The Johnson Pump Twin Port 500GPH Livewell Aerating Pump - 12V is a marine-duty dual-outlet water circulation system engineered for vessels requiring simultaneous livewell aeration and raw water washdown capability. Rated at 500 gallons per hour, this 12-volt pump consolidates two critical onboard functions into a single intake line, eliminating the need for redundant through-hull fittings and simplifying below-deck plumbing architecture.

The pump features a 3/4-inch tapered inlet that connects directly to the vessel's seacock, with upper and lower discharge ports that operate independently. The upper outlet delivers continuous flow through a 3/4-inch discharge line to the livewell system, maintaining oxygen levels critical for fish preservation. The lower outlet routes water to the washdown pump via either 1/2-inch or 3/4-inch ports, allowing crew flexibility in deck plumbing configuration. A high-pressure inlet seal handles the dynamic pressures generated during high-speed operation, preventing cavitation and maintaining consistent flow rate across varying throttle settings. At 0.7 pounds and compact 6 x 3 x 10-inch dimensions, the pump integrates cleanly into tight engine room spaces without requiring structural modification.

This dual-function configuration is purpose-built for fishing and patrol vessel operators who need reliable baitwell oxygenation during extended offshore operations while maintaining independent washdown capability for deck maintenance and equipment rinsing. The 12-volt DC architecture ensures compatibility with standard marine electrical systems found on center consoles, recreational fishing boats, and small commercial vessels. Johnson Pump's self-priming design eliminates the need for manual priming on each startup, reducing crew tasks and enabling rapid system deployment when conditions demand immediate livewell circulation.