Jabsco 12v Par-Max HD5 Freshwater Pressure Pump

Model Number: J20-280
Voltage: 12 volt
Max flow: Tooltip Open Flow: 5 GPM 18.9 L/min
Pressure: Tooltip 60 PSI cut-off pressure (2.8 bar)
Inlet/Outlet size: 12mm
Self priming to: 8ft (2.4m)
No. taps/outlets: 1 - 3
Maximum current draw: 12A
Recommended fuse size: 20A
Motor Design: Brushed, permanent magnet
Diaphragm: Polypropylene
Certifications: CE, ISO8846, RCM
Ingress protections: IPX6
Packaging Size (cm): 39 x 15 x 14cm
Packaging Weight (kg): 3.15kg
Liquid to be pumped: Fresh water
$ 470.00
$ 504.00
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The Jabsco 12v Par-Max HD5, J20-280  freshwater pressure pump is an ideal 12v pump to supply water at pressure to three to five taps / outlets in a 12 volt environment such as in a caravan, boat or for a small solar house application delivering 18.9 L/min at open flow and @ 60PSI at pressure for a smooth flow and hassle free pump operation. 

This Jabsco pressure pump automatically turns on and off when you turn the tap on and off. Runs up to 5 outlets (sink, shower, toilet, washing machine, tap). The rule of thumb for sizing your pump is 1 GPM (gallon per minute) per outlet is required.

Providing a very smooth water flow even at low demand due to its integrated by-pass valve which controls unwanted cycling and noise.  This accounts for the popularity and reliability of the Jabsco Par-Max freshwater pump range. A reliable 12v marine grade pressure pump with 3 year manufacturers warranty.

Jabsco J20-280 12V Par-Max HD5 Pressure Pump Applications 

  • Caravan
  • Marine/Boat
  • Solar cabin
  • RV

Jabsco J20-280 12V Par-Max HD5 Pressure Pump Features

  • Jabsco – world leading brand
  • 3 year warranty
  • Long life sealed motor
  • Automatically turns on and off
  • Quiet operation
  • Self priming for ease of installation
  • Built in bypass lowers pulsation and noise, reducing cycling and provides a smoother flow
  • Reliable performance
  • Can run dry without damage
  • Integrated, sealed pressure switch for on demand operation
  • Co-moulded diaphragm technology for long life and durability
  • Heavy duty motor and cast aluminium lower housing for long pump life even at high pressures
  • Self priming
  • Automatic thermal overload cutout
  • Made from durable, corrosion resistant materials
  • Installation instructions included
  • Vibration dampening mounting feet


  • 1 x Jabsco Par-Max HD5 freshwater pump
  • 2 x 1/2″ (13mm) straight hose barbs
  • 2 x 3/4″ (19mm) straight hose barbs
  • 1 x 90° 40 mesh quick connect strainer


  • Mount pump in driest location
  • Follow pump instructions for correct set-up
  • Motors are not waterproof and should not be subject to external water contact

Jabsco Par-Max Freshwater Pressure Pump Range: 

  • J20-202 - 12v - 40psi - 11 L/min - Parmax 3
  • J20-205 - 24v - 40psi - 11 L/min - Parmax 3
  • J20-208 - 12v - 60psi - 11 L/min - HD3
  • J20-210 - 12v - 40psi - 15 L/min - HD4
  • J20-211 - 24v - 60psi - 15 L/min - HD4
  • J20-280 - 12v - 60psi - 19 L/min - HD5
  • J20-284 - 12v - 60psi - 22.7 L/min - HD6
  • J20-285 - 24v - 60psi - 22.7 L/min - HD6

Typical 12v Jabsco water pump set up for caravan cabin or boat 

Typical 12v water pump set up for a cabin or small home