Jabsco Par-Max HD4 Heavy Duty Water Pressure Pump - 12V - 4 GPM - 60 PSI

Meet the Jabsco Par-Max HD4 Heavy Duty Water Pressure Pump — a rugged, 12V DC pump engineered to deliver reliable 4 GPM at up to 60 PSI for marine, RV, and off-grid water systems. Built for high-demand applications, the HD4 combines tough construction with quiet, efficient operation to keep your water flowing when you need it most.

Heavy-duty design for long life

• Wider motor housing with a powder-coated shell and cast aluminum endbells and lower housing to improve pressure capability and life.
• Co-molded diaphragm technology for superior durability and extended service life.
• Plastic housing protects the motor from corrosion in harsh marine environments.
• HD models feature heavy-duty motors and cast aluminum lower housings for longevity at high pressures.

Efficient, quiet, on-demand performance

• Integrated sealed pressure switch enables instant on-demand operation with no external controls.
• Self-priming design allows flexible installation (7 ft dry priming minimum).
• Vibration-dampening mounting feet reduce noise and movement during operation.
• Bypass module helps reduce cycling and delivers smoother flow.
• Quick-connect ports simplify installation, servicing, and maintenance.

Versatile, reliable performance

• 12V DC power for versatile installation on boats, RVs, and off-grid systems.
• Pressure capacity up to 60 PSI (4.1 bar) with versions available up to 6 GPM, or 1–3 GPM for vessels with multiple outlets.
• Max inlet pressure: 30 PSI (2.1 bar).
• Fluid temperature range: 32°F–140°F (0°C–60°C).

Specifications

• Motor design: Brushed, permanent magnet TENV
• Pumphead upper housing: Glass fiber reinforced polypropylene
• Diaphragm: Co-molded TPV
• Check valves: EPDM
• Ingress Protection: IPX6
• Certifications: CE, ISO8846, RCM
• Dry self-priming: 7 ft minimum (2.13 m)

WARNING: This product can expose you to chemicals including ANTIMONY OXIDE (ANTIMONY TRIOXIDE) which is known to the State of California to cause cancer. For more information go to P65Warnings.ca.gov.