Skip to content Skip to navigation menu
Live Chat

Par-Max 1, Miniature Automatic Demand Pump


Add to My List

Extended Product Protection with PLUS Plan!

In stock online.
Model # 1896844 | Mfg # 99W 42630-2900

Product Description

Jabsco Par-Max 1 Miniature Automatic Demand Pump

The new Par-Max 1 compact automatic demand water system is self-priming to 4 feet, and can run dry for extended periods of time without harm to the pump. This little workhorse can supply three fixtures, one or two in use at a time. The built-in pressure switch automatically starts and stops the pump when the faucet is opened or closed.

  • The Par-Max 1 motor is thermally protected
  • 12 Volt DC, 1.9 Amp. (@ 10 psi)
  • Flow: 1.1 GPM
  • 3/8" hose barb ports
  • Pressure switch on at 22 psi, off at 35 psi.
  • Two adapters for 3/8" barb to 1/2" hose
  • Dimensions: 2.3"H x 3.5" W x 6.3"L


Par-Max 1, Miniature Automatic Demand Pump

Amperage 1.9 Amps at 12 Volts DC
Activation Method Automatic
Capacity 1.1 GPM
Diameter 3/8", 1/2"
Dimensions 2 5/16" Height x 3 1/2" Width x 6 7/16" Length
Features Remote Pressure Switch
Voltage 12 Volts DC
Warranty Details One Year

West Advisor

The West Advisor articles have answered boaters' questions and provided solutions to boating problems for more than 20 years. West Marine has compiled one of the Web's most comprehensive collections of technical boating information articles.


by PowerReviews
Jabsco Par-Max 1, Miniature Automatic Demand Pump

(based on 1 review)

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars



Reviewed by 1 customer

Displaying review 1

Back to top

(1 of 1 customers found this review helpful)


Very Good Pump

By Bob

from Detroit, Mi

About Me Advanced

Verified Buyer


  • Installs Easily
  • Practical


    Best Uses

      Comments about Jabsco Par-Max 1, Miniature Automatic Demand Pump:

      The cooler in my boat drained directly into the bilge. I prefer to keep any water I can from entering into the bilge. I'm using this pump to lift the cooler water to my sink drain above the boat's water line to drain outside. The pump handles the load quite nicely. It works as advertised. I'm very pleased.

      Displaying review 1

      Back to top