Jabsco 12V PAR-MAX 1 PLUS Auto Freshwater Pump 3.8L/min

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The Jabsco Par-Max pump is a low-flow, compact, diaphragm operated automatic water pressure pump to provide fresh water on small boats, caravans & RV's Etc.

The Par-Max 1 Plus has a flow rate of up to 3.8 litres per minute (1.0 GPM) with operating pressure of up to 35 PSI.

It has a modern design, robust reinforced polypropylene housing, santoprene diaphragm, EPDM valves & 316 stainless check valve spring.


  • 3.8 litres per minute ( 1 gallon per minute) at open flow.
  • Automatic pressure switch cut off - pressure up to 35 PSI.
  • Vibration& noise reducing rubber mountings.
  • Self-priming to 1.8 metres (6ft)
  • Pumps liquids from 4 Deg up to 43 Deg centigrade max temp.
  • Built-in thermal overload protection.
  • Quick connect / disconnect plug-in ports.
  • Ports suit 10mm (3/8") hose + adaptors provide for 12mm (1/2") hose.
  • Low amp draw ideal for battery powered applications.
  • 1 Year Warranty


All orders are shipped from our Brookvale, Sydney order fulfilment centre. Orders are normally shipped within 5 business days - most quicker!

Shipping day estimates after your order leaves our fulfilment centre in Sydney are based on Australia Post domestic delivery times:

 State  Shipping Days
 ACT   2 - 5 business days
 NSW   2 - 5 business days
 NT   7 - 11 business days
 QLD   3 - 5 business days
 SA  5 - 6 business days
 TAS  5 - 7 business days
 VIC  4 - 6 business days
 WA  6 - 9 business days


* These delivery times are an estimate and actual delivery times may vary based on peak periods and other external factors. Bulky orders may take longer.

Shipping rates are automatically calculated based on live quotes supplied by our shipping partners. The quote takes into consideration, the bulk of your cart, where you want it delivered and if you want express or standard shipping.

Get a shipping rate estimate by adding items to your online cart. Go to the cart by clicking on the shopping cart icon located at the top right of the page. Then enter your shipping destination information into the "Estimate Shipping and Tax" section of the shopping cart summary.

International Shipping

We are currently unable to deliver online orders outside of Australia.

If you are located outside of Australia and wish to place an order offline. Please contact our Special Orders Delivery department or send us an enquiry via the orange help bubble located at the bottom right of this page.



Online purchases can be returned/exchanged within 30 days. Some exclusions do apply.

Visit our Returns Policy page for details on how you can return an item.