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Best Seller Jabsco Par-max Hd4 Heavy Duty Water Pressure Pump - 12v - 4 Gpm - 40 P Customer Approved [tEO0gA6Z]

$45.99 $147.99 -69%

Mfr # Q401J-115S-3A. Par-Max HD4 Heavy Duty Water Pressure Pump - 12V - 4 GPM - 40 PSI HD (Heavy Duty) models include a wider diameter motor with a powder coated shell, cast aluminum endbells and lower housing to improve pressure capability and life.

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Best Seller Jabsco Par-max Hd4 Heavy Duty Water Pressure Pump - 12v - 4 Gpm - 40 P Customer Approved [tEO0gA6Z]

Mfr # Q401J-115S-3A.

Par-Max HD4 Heavy Duty Water Pressure Pump - 12V - 4 GPM - 40 PSI

HD (Heavy Duty) models include a wider diameter motor with a powder coated shell, cast aluminum endbells and lower housing to improve pressure capability and life. Available in configurations up to 6 GPM (23 LPM) and 60 PSI (4.1 BAR), these pumps deliver exceptional performance.

Standard models provide good performance in an economical footprint. These configurations are available in 1-3 GPM, perfect for vessels with 1-3 outlets. A plastic housing protects the motors on these units from corrosion.

Features:

  • Co-molded diaphragm technology for long life and durability
  • HD models feature heavy duty, motors and cast aluminum lower housings which allow for longlife, even at high pressures
  • Efficient and quiet operation
  • Integrated, sealed pressure switch for on-demand operation
  • Self-priming allows for installation versatility
  • Can run dry without damage
  • Quick connect ports for ease of installation, servicing, and maintenance
  • Vibration dampening mounting feet
  • Equipped with integrated bypass module to reduce cycling and provide smoother flow

Specifications:

  • Motor design: Brushed, permanent magnet TENV
  • Pumphead upper housing material: Glass fiber reinforced polypropylene
  • Diaphragm: Co-molded TPV
  • Check valves: EPDM
  • Max inlet pressure: 30 PSI (2.1 Bar)
  • Fluid temperature range: 32°F – 140°F (0°C – 60°C)
  • Dry self-priming capability: 7ft min (2.13m/min)
  • Certifications: CE, ISO8846, RCM
  • Ingress Protection: IPX6

What Our Customers Say

February 2, 2026

Absolutely no complaints!

This is a clever and reliable gadget.

- Rhea P..

February 2, 2026

Absolutely no complaints!

A purchase that was money well spent.

- Theodora Z..

February 2, 2026

Absolutely no complaints!

This is an impressive and handy gadget.

- Sioned Z..

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