Jabsco
Jabsco Par-Max 2 12V Water Pressure Pump 7.6LPM 35PSI
The Jabsco Par-Max 2 12V Water Pressure Pump is a compact automatic freshwater pump designed to provide reliable pressurised water aboard yachts, launches, trailer boats and other recreational vessels.
Delivering up to 7.6 litres per minute (2.0 GPM) open flow with a 35 PSI (2.4 bar) shut-off pressure, the Par-Max 2 is an excellent choice for smaller marine freshwater systems where dependable water pressure and compact installation are important.
Its multi-diaphragm design allows the pump to self-prime up to 3 metres (10ft) and run dry without damage, providing dependable performance even when the freshwater tank is positioned some distance from the pump.
The integrated automatic pressure switch starts the pump when a tap or shower is opened and switches it off once the system reaches operating pressure. A built-in bypass helps provide smoother, quieter water delivery while reducing pressure fluctuations.
Designed specifically for marine freshwater applications, the Jabsco Par-Max 2 combines proven Jabsco pump technology with compact dimensions, straightforward installation and reliable performance.
Key Features
- Genuine Jabsco Par-Max 2 freshwater pressure pump
- 12V DC operation
- 7.6L/min (2.0 GPM) open flow
- 35 PSI / 2.4 bar shut-off pressure
- Pressure switch cuts in at approximately 25 PSI / 1.7 bar
- Automatic pressure-controlled operation
- Multi-diaphragm pump design
- Self-primes up to 3m (10ft) vertical lift
- Can run dry without damage
- Built-in bypass for smoother, quieter flow
- Automatic thermal overload protection
- Compact marine installation
- Suitable for freshwater systems
- Supplied with 2 × 13mm (1/2") straight hose barb fittings
- Genuine Jabsco marine equipment
Automatic Water Pressure
The Jabsco Par-Max 2 automatically provides pressurised water whenever you need it.
Opening a tap causes pressure in the plumbing system to fall. The pump's integrated pressure switch senses this pressure drop and automatically starts the pump.
Once the tap is closed and system pressure reaches approximately 35 PSI, the pump automatically switches off.
This provides convenient household-style water delivery aboard your boat without manually switching the pump on and off every time water is required.
Built-In Bypass for Smoother Flow
The Par-Max 2 incorporates a bypass system designed to provide smoother and quieter water delivery.
This is particularly useful at lower flow rates, where conventional pressure pumps can cycle rapidly between on and off.
The bypass helps moderate pressure fluctuations, providing more consistent flow from taps and other freshwater outlets.
Self-Priming to 3 Metres
The multi-diaphragm design allows the Par-Max 2 to self-prime vertically up to 3 metres (10ft).
This provides greater flexibility when selecting an installation position, particularly where the freshwater tank and pressure pump cannot be installed directly alongside one another.
Run-Dry Capability
The Jabsco Par-Max 2 can run dry without damage, providing valuable protection if the freshwater tank unexpectedly runs empty.
While extended unnecessary dry running should still be avoided, this capability provides additional reliability in real-world marine installations.
Thermal Protection
The electric motor is protected by an automatic thermal overload cut-out.
If excessive temperature is detected, the protection system helps prevent damage to the pump motor, providing an additional layer of protection for your freshwater system.
Technical Specifications
| Feature | Specification |
|---|---|
| Brand | Jabsco |
| Series | Par-Max 2 |
| Part Number | 31295-3512-3A |
| Application | Marine Freshwater Pressure System |
| Voltage | 12V DC |
| Open Flow Rate | 7.6L/min / 2.0 GPM |
| Cut-In Pressure | 25 PSI / 1.7 bar |
| Shut-Off Pressure | 35 PSI / 2.4 bar |
| Maximum Current | 6A |
| Recommended Fuse | 10A |
| Self-Priming | Up to 3m / 10ft vertical lift |
| Run Dry Capability | Yes |
| Bypass | Yes |
| Thermal Protection | Yes |
| Hose Connections | 13mm / 1/2" |
| Supplied Fittings | 2 × Straight Hose Barbs |
| Length | 231mm |
| Width | 99mm |
| Height | 106mm |
Common Applications
The Jabsco Par-Max 2 is ideal for supplying freshwater to:
- Galley taps
- Hand basins
- Small showers
- Cockpit taps
- Transom showers
- Freshwater wash-down points
- General onboard freshwater outlets
It is particularly well suited to smaller recreational boat freshwater systems where moderate flow and reliable automatic pressure are required.