Jabsco Par-Max 3 Water Pressure Pump - 12V - 3 GPM - 40 PSI

The Jabsco Par-Max 3 Water Pressure Pump is a compact 12-volt on-demand water system designed for mobile applications where reliable, consistent water pressure is essential. It is ideal for RVs, marine vessels, agricultural sprayers, and auxiliary vehicle systems, providing clean water at controlled pressure without requiring external power infrastructure.

Operating at 3 gallons per minute (GPM) and 40 pounds per square inch (PSI), the Par-Max 3 generates sufficient pressure for showers and deck wash-downs while remaining energy-efficient on 12-volt systems. The pump uses an automatic pressure switch to activate only when demand exists, eliminating idle draw and extending battery life in auxiliary setups. Constructed from corrosion-resistant materials with sealed internals, it handles both fresh and slightly brackish water without degradation.

The compact form factor—measuring 6 by 6 by 15 inches and weighing just 4.9 pounds—makes it ideal for confined engine bays, under-bed mounting, or integrated cabinetry in custom vehicle builds where space and weight matter. This pump is particularly beneficial for those looking to upgrade their camper's freshwater system or add pressurized water to a remote off-road setup.