Jabsco Par-Max HD4 Heavy Duty Water Pressure Pump is a rugged 24V system designed to deliver reliable, high-flow water pressure for marine, RV, and other demanding applications. This model provides 4 GPM at 60 PSI (4.1 BAR), ideal for vessels with multiple outlets and on-demand water needs.
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Voltage: 24V DC operation
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Flow and Pressure: 4 GPM at 60 PSI (4.1 BAR)
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HD Construction: Wider diameter motor with powder-coated shell, cast aluminum endbells, and a lower housing to improve pressure capability and longevity
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Materials: Pumphead upper housing is glass fiber reinforced polypropylene; diaphragm is co-molded TPV; EPDM check valves
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Protection and Housing: Corrosion-protective plastic housing protects the motor
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On-Demand Operation: Integrated sealed pressure switch enabling automatic starts/stops with demand
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Installation and Service: Quick-connect ports for easy installation, servicing, and maintenance
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Self-Priming: Self-priming capability up to 7 ft (2.13 m)
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Noise and Vibration: Vibration-dampening mounting feet create quieter operation
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Flow Management: Integrated bypass module reduces cycling and smooths flow
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Protection and Certifications: IPX6 ingress protection; CE, ISO8846, and RCM certifications
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Operating Limits: Max inlet pressure 30 PSI (2.1 BAR); fluid temperature 32°F–140°F (0°C–60°C)
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Designed For: Reliability, quiet operation, and easy installation in marine freshwater systems, RVs, and other mobile setups requiring dependable water delivery with minimal maintenance
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HD Family Context: Part of the HD family offering configurations up to 6 GPM at 60 PSI, with the HD4 delivering 4 GPM at 60 PSI
The Jabsco Par-Max HD4 delivers consistent pressure for multiple outlets, benefits from durable, corrosion-resistant construction, and supports easy installation and low-maintenance operation. With automatic on-demand control, self-priming capability, and vibration-dampening mounts, it’s a practical choice for demanding water delivery on boats, campers, and other mobile setups.
