Jabsco Par-Max HD4 24V 4-GPM 60-PSI Water Pump

The Jabsco Par-Max HD4 24V Water Pump (part Q402J-118S-3A) moves about 4 gallons per minute and shuts off at 60 psi on 24-volt systems. It is built for larger boats that want strong shower pressure. The heavy duty build is aimed at boats that use water every day.

The upper pump housing is glass-fiber reinforced polypropylene, the diaphragm is a co-molded TPV, and the check valves are EPDM. Those materials are chosen to resist wear and stay compatible with potable water. Fluid temperature can range from 32 to 140 degrees Fahrenheit.

Because the pump only handles cold water from the tank, it should be plumbed before the water heater, never after it. Confirm that plumbing and fixtures are rated for 60 psi. Keep a strainer on the inlet and clean it each season. The 40 psi 24V HD4 and other pumps are in our fresh water and washdown pumps.

• 24V, about 4 GPM at 60 psi
• Fiber reinforced polypropylene head
• EPDM check valves, TPV diaphragm
• Fluid range 32 to 140 degrees F