Johnson Pump Aqua Void Electro-Magnetic Combo 500 GPH Bilge Pump - 12V

The Johnson Pump Aqua Void Electro-Magnetic Combo 500 GPH Bilge Pump is engineered for serious boaters who demand reliable automatic water removal in unpredictable conditions. Whether you're running offshore, crossing rough inlets, or simply protecting your investment during storage, this 12-volt bilge pump delivers the performance needed to keep your bilge dry and your boat safe. Built on proven Johnson Pump technology, this combo unit handles the heavy lifting so you can focus on the water ahead.

The electro-magnetic design eliminates moving impellers that can jam on debris—a critical advantage in real-world boating where silt, oil, and sediment accumulate in your bilge. At 500 gallons per hour capacity, this pump handles moderate to heavy water ingress without overwhelming your electrical system. The 12-volt requirement integrates seamlessly with standard marine battery banks, while the combo configuration pairs the pump with necessary switching or float-activated controls, reducing installation complexity and ensuring the pump activates automatically when water levels rise.

This bilge pump suits center-console, cuddy cabin, and cruising boats where passive drainage isn't sufficient and high-volume pumping capacity matters less than dependable, jam-free operation. Experienced anglers and cruisers appreciate the electro-magnetic design during extended trips where service access is limited; unlike impeller pumps, there's no risk of vane seizure from extended dry-running or contaminated fluid. Installation requires basic 12V wiring to your marine battery and a hull or through-hull fitting for discharge—standard for any modern bilge system. For boats regularly exposed to seawater spray, saltwater bilge conditions, or freshwater that sits idle for weeks, this Johnson Pump combo delivers the automation and reliability that separates amateur setups from seasoned operations.