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Grundfos JP Self Priming Manual Jet Pump

SKU 99458782
Original price $353.15 - Original price $470.13
Original price
$353.15 - $470.13
Current price $353.15

Grundfos JP Self Priming Manual Jet Pump

Grundfos 2022 Offer:  Purchase any Jet Pump from the Grundfos range, tell us what you think of it on and get a $50 Visa card for reviews on the Grundfos Jet Pump Range. Terms and Conditions apply. Visit here for Ts&Cs: 

The Grundfos JP is a self-priming, single-stage centrifugal jet pump. The jet pump has excellent suction capacity and is designed for long and trouble-free operation. The built-in ejector with guide vanes ensures optimum self-priming properties. JP is small and compact, and the lifting handle makes JP handy and easy to carry.

The pump housing is made of stainless steel. The JP pump is designed for a long and trouble-free operation. The overall design is robust with excellent corrosion resistance ensured by the stainless steel pump housing, composite impeller and paint application by electrophoresis. JP is small and compact with a lifting handle that makes the pump handy and easy to carry. The compact pump features a build in ejector with guide vanes. This ensures optimum self-priming properties, featuring a suction-lift up to 8 meters. The self-priming pump also ensures a stable operation as is it able to lift liquid from below the inlet level and can handle a mix of air and liquid until the pump reaches a fully-primed pumping condition.

The JP pump has built-in thermal protection, which immediately stops the pump if it overheats. The motor is air cooled and equipped with oversized, sealed, greased-for-life ball bearings to ensure silent operation and minimum service.

Looking to purchase the Grundfos JP Jet pump with additonal accessories?


The pumps are suitable for domestic water supply, where pressure boosting and self-priming is needed.

The product can be used in a wide variety of applications, such as these:

  • single- and two-family houses, boosting the pressure of water coming from a break tank, roof tank or a well
  • garden irrigation
  • car wash
  • small-scale agriculture and horticulture
  • light commercial applications
  • pool cleaning (AISI 316 variant only).


    • Self-priming, featuring a suction lift of up to 8 m
    • 1" (25mm) Suction and Discharge
    • Robust design and corrosion-free materials for a long lifetime
    • Built-in thermal and current protection with no additional motor protection required
    • Stable operation with excellent suction capacity even when there are air bubbles and small sandy impurities in the water.


    The Grundfos JP Pumps are generally in-stock throughout our warehouses in Australia. Please call Land & Water Technology on (08) 9209 3330 to confirm stock availability.


    All Grundfos products come with a 2-year warranty that fully complies with legal requirements.

    The warranty covers product and material defects which are not the results of normal wear and tear for a period of 24 months from the date of delivery. The warranty period may not, however, exceed 30 months from the date of production.

    Warranty claims will be rejected in the following situations:

    If the defect in the product arises from:

    • any drawing, design or specification supplied by the customer/purchaser
    • modifications undertaken by the customer/purchaser or a third party without the consent of Grundfos

    If a defect is caused by:

    • normal wear and tear
    • inadequate maintenance or faulty repair by others than Grundfos
    • failure to observe the operating instructions
    • over-loading
    • use of any unsuitable material
    • the effects of chemical or electrolytic action
    • building or assembly work not undertaken by Grundfos
    • other reasons beyond Grundfos’ control.

    As a general rule, Grundfos will not accept to pay transportation/replacement/installation costs for faulty products.


    Model Number Model Name
    99458782 Grundfos JP 3-42 - 0.42kW
    99458783 Grundfos JP 4-47 - 0.56kW
    99458784 Grundfos JP 4.54 - 0.75kW
    99458785 Grundfos JP 5-48 - 1.01kW