Johnson Pump Aqua Jet WPS Water Pressure Pump, 4.0 GPM 12V, 41 PSI

Ensure consistent, quiet water pressure across your boat or RV with the Johnson Pump Aqua Jet WPS 4.0 GPM Water Pressure Pump. Engineered with a five-chamber positive displacement diaphragm design, this pump delivers a steady 4.0 gallons per minute (GPM) flow with dramatically lower noise and pulsation compared to conventional pumps. Its intelligent, self-priming operation automatically adjusts to demand, providing a reliable and comfortable water supply for all your onboard fixtures. Upgrade your freshwater system with Johnson Pump's dependable performance and enjoy the comforts of home wherever your adventures take you.

• Johnson Pump Aqua Jet WPS 4.0 Pump
• NPT Threaded Fittings (3/8" and 1/2")
• Hose Barb Fittings (1/2" and 3/4")
• KlickTite™ Connectors
• Rubber Mounting Feet

• Pulsation-Free Water Flow: The advanced 5-chamber design significantly reduces noise and water pulsation, even at low speeds, ensuring a smooth, residential-like experience.
• High Capacity Output: Delivers a robust 4.0 GPM flow rate (15.1 LPM) at a shut-off pressure of 41 PSI (2.8 Bar), capable of supporting multiple faucets or a high-pressure shower head simultaneously.
• Intelligent Operation: Features an integrated pressure switch that automatically turns the pump on and off as needed, maintaining consistent system pressure.
• Self-Priming Capability: Designed to pull water from up to 8 vertical feet, offering flexible installation options and the ability to run dry without damage.
• Durable Marine-Grade Construction: Built with a polypropylene body, Santoprene diaphragm, and EPDM valves for corrosion resistance and long-term reliability in harsh marine and RV environments.
• Easy Connectivity: Equipped with versatile NPT threaded and hose barb connections, including KlickTite™ swivel ports, for straightforward integration into existing plumbing systems.

Ideal for small to medium-sized leisure boats, commercial vessels, recreational vehicles (RVs), mobile homes, and summer residences. For optimal performance and pump protection, it is recommended to install this pump with a PUMProtector inlet strainer to prevent debris ingress. While featuring an intelligent pressure switch, some installations may benefit from an accumulator tank for further smoothing of flow and reducing pump cycling.