Jabsco Par-Max 2 Fresh Water Pump, 12V, 2 GPM, 35 PSI, Model 31295-3512-3A

The Jabsco Par-Max 2 Fresh Water Pump (31295-3512-3A) is a 12V diaphragm pump built to bring home-style water delivery to an onboard freshwater system. It uses a pressure-controlled diaphragm and an integrated sealed pressure switch to run on demand, starting automatically when a tap opens and shutting off when pressure is restored. The pump is self-priming and can run dry without damage to the unit, so an empty tank or an air pocket in the line will not burn out the motor.

An enclosed motor design supports a long working life under sustained high pressure, and an integrated bypass module reduces cycling for smoother, more consistent flow at the tap. Dampening feet are built into the housing to absorb vibration, keeping the pump quiet during operation. Installation and servicing are simplified with quick-connect ports: the pump comes equipped with an inline 40 mesh quick-connect strainer to protect the diaphragm from debris, along with two 1/2 inch quick-connect straight hosebarb fittings.

Rated for 2 GPM (7.6 LPM) of open flow at 35 PSI on a 12V system, this pump suits smaller freshwater demands such as galley sinks, single-head washdown, or backup supply where a compact, quiet, on-demand pump is needed.

Specifications

• Brand: Jabsco
• Manufacturer Part Number: 31295-3512-3A
• Open Flow: 2 GPM (7.6 LPM)
• Voltage: 12V
• Pressure: 35 PSI
• Quick Connect Strainer: Inline 40 Mesh
• Hosebarb Fittings: 2 x 1/2 inch
• Product Dimensions: 6 inches L x 15 inches W x 6 inches H
• Material: Plastic
• Color: Black
• Weight: 5 pounds
• UPC: 671880841764

Frequently Asked Questions

What flow rate and pressure does the Jabsco Par-Max 2 pump deliver? The Jabsco Par-Max 2 (31295-3512-3A) delivers 2 GPM (7.6 LPM) of open flow at 35 PSI on a 12V system.

Can this pump run dry without being damaged? Yes, the Par-Max 2 fresh water pump is designed to run dry without damage to the unit, so an empty tank or air in the line will not harm the motor.

Is the Jabsco Par-Max 2 self-priming? It is self-priming, which means it does not need to be manually primed before use during installation or after the system has run dry.

How does the pump turn on and off automatically? An integrated sealed pressure switch controls on-demand operation: the 31295-3512-3A pump starts when water pressure drops (a tap opens) and stops once pressure is restored.

What size hose fittings does this pump use? The Par-Max 2 comes equipped with two 1/2 inch quick-connect straight hosebarb fittings for the inlet and outlet lines.

Does the pump include a strainer? Yes, an inline 40 mesh quick-connect strainer is included to filter debris out of the water before it reaches the diaphragm.

How much does the Jabsco Par-Max 2 weigh? This fresh water pump weighs 5 pounds.

What voltage does this pump require? The Par-Max 2 is a 12V pump, matching standard marine and RV DC electrical systems.

Is the Jabsco Par-Max 2 noisy when running? No, it is built for quiet operation, using dampening feet in the housing to reduce vibration and running noise.

What are the dimensions of the 31295-3512-3A pump? The pump measures 6 inches long by 15 inches wide by 6 inches high.

What is this pump used for? The Jabsco Par-Max 2 is a freshwater system pump intended for on-demand water delivery, such as at a galley sink or washdown point, similar to home water pressure.

What material is the pump housing made of? The Par-Max 2 fresh water pump has a black plastic housing.