Boat Water Pressure Pumps

About these products Variety of flow rates for multiple needs: Available in 1.2GPM, 4GPM, and 6GPM models, these 12V diaphragm pumps cover everything from light spraying to intensive irrigation, adapting to on-demand water systems in RVs, gardens, food trucks, and more. Automatic start and stop: The 4GPM and 6GPM models incorporate a long-life pressure switch and bypass valve that automatically activate or stop the pump when the tap is opened or closed, optimizing water usage without manual intervention. Quiet and vibration-free design: Pure copper motors combined with 2- to 4-chamber systems ensure a continuous and quiet flow with only 50dB of noise, thanks to pulsation reduction and vibration-absorbing bases. Easy installation with secure connections: All models include MNPT hose connectors and stainless steel clamps. The 1.2GPM models have 3/8" inlet/outlet connections, while the 4GPM and 6GPM models have standard connections. 1/2" plus PTFE tape and filter Enhanced safety and durability: Each pump is equipped with overheat and overload protection, preventing failures due to high temperatures or prolonged use, thus increasing its lifespan even under continuous operation. Key differences The main difference between these models lies in their maximum flow rate and operating pressure. The 1.2 GPM version (model LSDP1-020-060-22) is ideal for precise applications such as drip irrigation, spraying, or light cleaning with a pressure of up to 80 PSI and a 3/8" connection. In contrast, the 4 GPM model (LSDP1-040-045-33) is suitable for domestic water systems in caravans or gardens with 40 PSI and a 3m self-priming head. The 6 GPM version (LSDP1-060-070-42) offers greater power with pressure up to 70 PSI, recommended for demanding applications such as multiple taps on RVs or longer-range irrigation systems. All models offer automatic start/stop, except for the 1.2 GPM model, which does not include this feature. Specifications Model: LSDP1-020-060-22 Voltage: 12V DC Power: 72W Maximum Flow Rate: 1.2 GPM / 4.5 L/min Maximum Pressure: 80 PSI Self-Priming Height: Up to 10 ft Inlet/Outlet: 3/8" MNPT Model: LSDP1-040-045-33 Voltage: 12V DC Power: 156W Maximum Flow Rate: 4 GPM / 15.1 L/min Maximum Pressure: 40 PSI Self-Priming Height: Up to 3 m Inlet/Outlet: 1/2" MNPT Chamber System: 3 Model: LSDP1-060-070-42 Voltage: 12V DC Power: 204W Maximum Flow Rate: 6 GPM / 22.7 L/min Maximum Pressure: 70 PSI Self-Priming Height: Up to 3 m Inlet/Outlet: 1/2" MNPT Chamber System: 4 Package Contents 4 GPM and 6 GPM Models 1 Diaphragm Water Pump 1 Filter 2 Hose Adapters 2 Stainless Steel Clamps 1 PTFE Tape 1 User Manual 1.2 GPM Model 1 Diaphragm Water Pump 2 Stainless Steel Clamps 1 User Manual