Johnson Pumps Water Pressure System Pumps

Johnson Pumps Aqua Jet™ Water Pressure Systems: Onboard Comfort, Built to Last

When life on the water demands the same freshwater convenience as life on land, Johnson Pumps delivers with a purpose-built line of water pressure system pumps engineered specifically for the marine environment. As part of the SPX FLOW group, Johnson Pump Marine has spent over eight decades earning the trust of recreational boaters, commercial vessel operators, and OEM shipbuilders worldwide — and their Aqua Jet™ water pressure system lineup is a prime example of why.

The Aqua Jet™ Product Line

At the heart of Johnson Pumps' water pressure system offering is the Aqua Jet™ series. These self-priming diaphragm pumps are engineered to deliver a steady, reliable flow to onboard faucets, showers, and galley appliances — all while withstanding the corrosive demands of the marine environment. The lineup spans multiple output ratings, from the compact WPS 2.4 through the WPS 5.2 series, giving boat owners flexibility to match pump capacity to their vessel's size and water usage requirements.

For larger vessels with multiple water outlets, the Aqua Jet Flow Master WPS 5.0 brings variable-flow technology to the table. Rather than cycling on and off with each tap, this pump adapts automatically to onboard water demand — delivering just the right pressure and flow without the jarring starts and stops common in conventional fixed-speed pumps. The result is a noticeably quieter, more comfortable experience below deck.

Johnson Pumps also offers compact all-in-one units that combine the pump and accumulator tank functions into a single assembly. These space-saving configurations are ideal for tight engine compartments or under-seat installations where every cubic inch counts, without sacrificing the pressure stability that a dedicated accumulator provides.

What Sets Johnson Pumps Apart in This Category

• Dramatically reduced noise and pulsation: Aqua Jet™ systems are specifically engineered for low-noise, pulsation-free operation — a critical consideration in the close quarters of a boat cabin.
• Self-priming design: These pumps can draw water from the tank without manual priming, simplifying installation and improving reliability after periods of disuse.
• Marine-specific engineering: Unlike general-purpose pressure pumps, every Aqua Jet™ product is designed to handle the humidity, vibration, and saltwater exposure unique to boating environments.
• 3-year limited warranty: Johnson Pumps backs its Aqua Jet™ water pressure systems with a limited 3-year warranty, reflecting confidence in long-term durability.
• Broad ecosystem of accessories: PUMProtect strainers, KlickTite™ port connectors, and accumulator tanks (available in capacities from 5.3 to 19.3 gallons) round out the system for a complete, protected installation.

Versatile Enough for More Than Boats

While designed with marine applications at the forefront, Johnson Pumps' water pressure system pumps are also well-suited for RVs, camper vans, and mobile homes — anywhere a compact, reliable freshwater pressure solution is needed away from a municipal water supply.

Whether you're outfitting a new build, upgrading an aging system, or replacing a failed pump mid-season, Johnson Pumps' Aqua Jet™ water pressure systems offer a proven, warrantied solution trusted by boat designers and marine professionals around the globe. Explore the full selection of Johnson Pumps water pressure system pumps or browse the complete Johnson Pumps brand catalog to find the right solution for your vessel.