Attwood Marine Aerator Systems

Attwood Marine Aerator Systems: Keeping Your Catch Alive on the Water

When it comes to livewell and baitwell performance, few names carry more weight than Attwood Marine. With more than a century of marine engineering behind them, Attwood has become one of the most trusted suppliers of aerator systems for fishing boats of all sizes — from weekend bass boats to serious tournament rigs. Their commitment to quality isn't just marketing talk: all Attwood pumps meet or exceed ABYC H-22, ISO 8846/8849 Marine, U.S. Coast Guard, NMMA, CE, and UKCA standards.

The Tsunami Aerator Line: Purpose-Built for Livewell Performance

The centerpiece of Attwood's aerator system lineup is the Tsunami Mk2 Aerator series. Known for its innovative engineering yet compact design, the Attwood Tsunami Aerator Pump delivers consistently high output performance from a small package. The Tsunami line spans multiple flow-rate variants — three high-efficiency pumps that move water at output capacities of 500 GPH, 800 GPH, and 1200 GPH — giving anglers a precisely matched solution for tanks of virtually any size.

What truly sets the Tsunami aerator apart is the engineering inside the housing. The pump features the most advanced materials, including premium-quality bearings and state-of-the-art brushes, alloys, and magnets. The patented shaft seal prevents leaks caused by misalignment, and the caulked and tinned wiring eliminates wicking, prevents water damage, and resists corrosion. These aren't just manufacturing refinements — they directly translate to longer pump life in the demanding marine environment.

The efficient design circulates water around the pump motor housing, helping to absorb the heat given off by the operating motor, extending the life of the entire unit. That water-cooled approach means the Tsunami runs cooler and more reliably than conventional aerator designs, especially during long fishing days when the pump never gets a rest.

Dual-Outlet Versatility and Easy Maintenance

For anglers running multiple livewells or those who want added onboard utility, Attwood offers a Dual-Outlet Aerator Pump. This design can feed two livewells simultaneously, or use one outlet to aerate while routing the other to a positive displacement pump for a high-pressure washdown application. The water-cooled motor sits inside a tough housing made of engineered alloy resin that resists impacts, UV, chemicals, and the plasticizers used in most hoses.

Maintenance is equally well thought out. The motor cartridge locks for secure placement and unlocks for easy cleaning, maintenance, and replacement. Cartridges are replaceable and interchangeable between bilge and aerator pumps, so keeping a spare cartridge on board covers multiple systems at once — a smart choice for anglers heading out for multi-day trips.

OEM-Trusted, Angler-Proven

Attwood pumps are tested and approved as standard equipment by leading boat manufacturers. That original equipment trust carries straight into the aftermarket: when you're upgrading or replacing an aerator system, you're installing the same engineering that top boat builders specify from the factory. Combined with Attwood's century-plus legacy and its backing under the Navico Group umbrella, these aerator systems represent a reliable long-term investment for any serious angler.