Jabsco Par-Max 1 Freshwater Delivery Pump, 12V DC
- Brand:
- Jabsco
- Part no:
- 42630-3512-3C
Image: Go2Marine
Where to buy
Specifications
- Pressure
- 35 psi
- Voltage
- 12V
- Current draw
- 3.5 A
- Port size
- 3/8" straight hosebarb
The Par-Max 1 is a Jabsco freshwater delivery pump for 12V DC, rated for 1 GPM at 35 PSI. It draws up to 3.5 amps with a 5A fuse size listed, and a plastic housing protects the motor from corrosion. The ports are two 3/8" straight hosebarbs, plus 3/8" to 1/2" adapters. No strainer is included. A sealed pressure switch runs it on demand, and it can run dry without damage.
Our take
The 3.5 amp maximum draw and 5A fuse size make this Par-Max 1 a light load on a 12V circuit, and the plastic housing protects the motor from corrosion. It ships with no strainer, so the supply side has no filter built in.
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.