Par-Max 1 Water System Pump, 1"-2 3/8" Outlets, 1.1GPM - ITT Jabsco
Price: $84.85
Save: $22.14
(20% Off $106.99)
Part # 42630-2900
2nd Day Air for $2.99 More Eligible
This item is found in the following Product Families

Flow rate: 1.1 gallons/min
Self-priming from dry up to 1m (4ft)


  • Self-Priming
  • Dry Running
  • Automatic Operation 42630-2900
  • Manual Demand 42631-2900
  • Meets U.S.C.G. Electrical Requirements


  • Pump Two chamber opposed double diaphragm design
  • Port(s) 3/8" hose barb
  • Voltage 12 Vdc
  • Amp Draw 1.9 amp
  • Fuse Size 4 amp
  • Motor Permanent Magnet, Thermally Protected, Intermittent Duty

The JABSCO Par-Max 1 series pumps are available as automatic and manual demand pumps. The 42630-2900 will automatically turn on when a fixture is opened and turn off when all fixtures are closed. The 42631-2900 is a manual demand pump for use with an electric faucet.

When starting up an automatic demand pump with a completely dry system, allow time for the demand pump to fill the system. Open a faucet, allow air to vent and close faucet when water flow is steady. Faucet strainers and aerators should be cleaned regularly.

Miniature multi-outlet water pressure pump serves 1 or 2 3/8" outlets at any one time. 1.1 gpm open flow output. Self-priming up to 5 feet. Dual diaphragm operation. Thermal overload protection automatically stops motor should it overheat due to overload, with auto restart feature. Diaphragm design allows dry running. Pressure switch cut-in 22 psi, cut-out 35 psi. Connections for 3/8" ID hose and slip-on 1/2" bushings. 12 volt dc, 4 amp fuse, automatic pump.
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dragonfly II
by Mel from conway, South Carolina on August 09, 2011
pump is great,it takes up little space and supplies plenty of pressure. I reccomend you also add an accumulator tank. This set up works very well.
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Can this pump be used in a compartment next to and higher than the fuel tank? Wondering about the fumes and spark.?
The pump does complied with USCG 183.410 ( Ignition Protection) but if the room is not ventilated then this could cause problems.

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