Jabsco Par-Max 2 Freshwater Pump, 12V DC
- Brand:
- Jabsco
- Part no:
- 31295-3512-3A
Image: Fisheries Supply
Where to buy
Specifications
- Pressure
- 35 psi
- Voltage
- 12V
- Current draw
- 6 A
- Port size
- 1/2" hosebarb
The Jabsco Par-Max 2 is a freshwater delivery pump on 12V DC. It is self-priming, has a sealed pressure switch for on-demand running, and uses a co-molded diaphragm. A bypass module reduces cycling for smoother flow, and a plastic housing protects the motor from corrosion. Quick connect ports make installation and servicing easier, and the pump can run dry without damage.
Our take
The Par-Max 2 can run dry without damage, which is a forgiving trait for a pump that also primes itself. Its sealed pressure switch runs it on demand, and a bypass module reduces cycling for smoother flow.
From our buying guide
Size a freshwater pump by the outlets that must run at once. Jabsco's rule of thumb is 1 GPM per outlet, and the listed flow is open flow, which falls as pressure rises.
Check before you buy:
- The data sheet shows flow at pressure. One Shurflo gives 4.0 GPM at 0 psi and 2.0 GPM at 40 psi.
- You have an inlet strainer, which Jabsco says is required in every freshwater pump installation.
- An accumulator suits the pump. Jabsco says one cuts cycling on a pressure-switch system, and not to use its accumulators with variable-speed pumps.

