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Description
Meet the Jabsco Par-Max HD4 Heavy Duty Water Pressure Pump — a rugged 12V DC pump designed to deliver up to 4 GPM at 60 PSI for marine, RV, and off‑grid water systems. Built for durability and quiet, efficient operation, it keeps water flowing when you need it most.
- 12V DC Operation: 12V direct-current power enables versatile installation on boats, RVs, and off‑grid setups.
- High Flow & Pressure: Delivers up to 4 GPM at up to 60 PSI (4.1 bar); max inlet pressure 30 PSI (2.1 bar). Versions also available up to 6 GPM or 1–3 GPM for multi-outlet vessels.
- Rugged Construction: Wider motor housing with a powder-coated shell and cast aluminum endbells and lower housing; plastic housing protects the motor from corrosion in harsh marine environments.
- Diaphragm Technology: Co-molded TPV diaphragm for superior durability and extended service life.
- Integrated Pressure Switch: Sealed pressure switch enables instant on-demand operation with no external controls.
- Self-Priming Design: Self-priming (7 ft dry priming minimum) allows flexible installation.
- Quiet, Vibration-Damped: Vibration-dampening mounting feet reduce noise and movement during operation.
- Bypass & Smooth Flow: Bypass module helps reduce cycling and delivers smoother flow.
- Installation Convenience: Quick-connect ports simplify installation, servicing, and maintenance.
- Durability & Reliability: IPX6 ingress protection; EPDM check valves; corrosion-resistant materials; CE, ISO8846, and RCM certifications.
- Temperature Range: Fluid temperature range 32°F–140°F (0°C–60°C).
- Applications: Designed for marine, RV, and off-grid water systems with dependable 12V operation.
This pump provides dependable, on-demand water pressure with minimal setup. The sealed pressure switch activates precisely when you need water, while the heavy‑duty construction and corrosion‑resistant housing withstand demanding environments. Self-priming capability offers flexible placement, and the quiet, low‑vibration design is ideal for busy live‑aboard configurations. Quick-connect ports and the built‑in bypass help ensure smooth flow across multiple outlets and fixtures. 
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