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Jabsco Par-Max 1 – 12 Volt 42630-2900 4.2 LPM

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Jabsco ParMax 1 42630-2900 Automatic Water Pressure Pump – ParMax 1.1 GPM

12 Volt 4.2 Litres Per Minute 35PSI  J20-099

The JABSCO Par Max 1 series pumps are extremely reliable miniature multi-outlet water pressure pumps.

This 42630-2900 Model will automatically turn on when a fixture is opened and turn off when all fixtures are closed.

Ideal for small boats, caravans and campervans


  • 1 x 42630 Auto Freshwater Pump

  • 1 x 3/8″ Hose Connection 

  • 2 X 1/2″ Adapters

  • Instructions


  • 12V Automatic Pump 1.9amp
  • Self-Priming
  • Dry running capability
  • Built-in pressure switch automatically starts and stops pump when a faucet is opened and closed (35 psi cut off pressure)
  • Automatic Operation for systems with up to 3 outlets (one or two at a time)
  • Smooth Flow
  • Low Amp Draw
  • Small & Compact
  • Built-in Thermal protector
  • 12V Automatic Pump 1.9amp
  • 35PSI
  • 4.2 LPM – Litres per Minute. 1.1 GPH

Specifications – ParMax 1

Motor: Permanent Magnet, Thermally Protected, Intermittent Duty. Pump: Two chamber opposed double diaphragm design; Self-priming up to 4 ft. suction lift; Pump able to run dry without damage; Intermittent duty. Port: Pump housing inlet and outlet are 3/8″ hose barb. Pump Series Dimensions – 42630-2900 Inches (mm) Height 2.28 (58) Depth 3.5 (89) Length 6.37 (162) Weight 1.3lb (.6 KG) Electric Water Pumps 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.


1. Remove shipping caps from pump ports. Some water from factory testing may spill out. 2. Mount pump vertically, with pump head down or horizontally in an accessible location. Do not compress feet with mounting screws. 3. Use 3/8″ I.D. flexible hose (preferably braided or reinforced). Use hose clamps on the slip-on hose barb connectors. 4. Install a Jabsco inlet 40 mesh strainer in an accessible location (for inspection and cleaning) between the tank and pump inlet. This strainer or equivalent is required for pump warranty to be valid. In an easily accessible location, install a switch to  control electricity to the pump. Turn the pump off when not in use for extended periods, when traveling or when tank is out of water. A 4 amp fuse should be installed in the positive lead with the pump being its only load. Wire size based on total wire length, both positive and negative leads. 0 – 30 ft. #16 AWG 0 – 60 ft. #14 AWG 0 – 80 ft. #12 AWG We also stock the Par Max 1 Plus 

Additional information

Additional information


Price does not include shipping. Product can be shipped via Toll / Australia post bags with retail box. Product can also be collected or couriered. We are happy to provide shipping / freight quotes.







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Shipping & Delivery
Prices do not include shipping.

Shipping quotes can be obtained by adding products to the cart and inputting your postcode.

$11.60 Brisbane Express - Postcodes 4000-4209, 4270-4299, 4500-4549, 9000-9725 up to 20kg

Boat Hut uses Toll Ipec Priority Service, Australia Post Express Post and Courier's Please. Boat Hut uses Australia Post or DHL International Service for New Zealand deliveries.

Free Local Pickup – by prior arrangement. We don’t always have all the products at our Acacia Ridge premises, but they may be at our warehouse. Warehouse collections can be arranged by prior arrangement - please contact us to discuss.

Order Tracking provided on all orders.

All orders will be processed within 2 business days - except backordered items. If we are unable to meet this timeframe we will contact you to provide details and options. If we are unable to ship your order within 3 business days we will offer you a refund in full or the option to wait for the goods to come into stock.

We are happy to ship to any country - and will provide a quote upon request. All overseas orders must be paid for via Paypal before your order is shipped.

Above pricing refers to regular size items that will fit in courier satchels - oversized items will require a freight quote.

Boat Hut reserves the right to refuse to fulfil an order that has the incorrect postage / freight collected at the time of sale. We will work with you to rectify the matter, if we are unable to come to a resolution then we will provide a refund in full.

Stock Availability

Boat Hut has approx 100,000 product lines coming from a number of warehouses across Australia.
Not all of these products are available for a walk-in purchase at Acacia Ridge - most times you will need to make arrangments in advance.
Please feel free to contact us to confirm our stock at Acacia Ridge or in our warehouses.
We try our best to keep the website up to date with current stock holdings.
We will accept back orders on out of stock items. All products are genuine & come with manufacturer's warranties.