Skip to Product Info
    • Lowara 1GS03-3 4
    • Lowara 1GS03-3 4

    Lowara 1GS03-3 4" Stainless Steel 3-Phase Submersible Bore Pump for Sprinkler Systems with Floating Impeller

    SKU: 1GS03-3
    Regular Price $1,260.00 AUD
    Including GST Shipping calculated at checkout.
    Payment & Security

    Your payment is processed securely.

    • American Express
    • Apple Pay
    • Google Pay
    • Mastercard
    • PayPal
    • Shop Pay
    • Union Pay
    • Visa
    Pairs well with

    Three-phase sprinkler systems drawing from 4-inch boreholes are well served by this submersible pump, which supports agricultural irrigation where reliable water delivery is essential for network operation. The floating impeller configuration handles groundwater containing suspended solids common in agricultural water sources.

    Driven by a 415V three-phase motor rated at 0.37 kW, drawing 1.2 Amps during operation. Maximum flow is 22.5 L/Min with maximum head of 79.4 metres at shut-off. The hydraulic design delivers stable pressure characteristics for sprinkler system requirements.

    Floating stack construction processes liquids containing up to 150 g/m3 of sand without binding. The front wear ring works in conjunction with the floating impeller to improve abrasion resistance, while the hexagonal shaft transmits motor torque effectively. An integrated check valve prevents unwanted back-siphoning into the well.

    Constructed with a 304 Stainless Steel casing and technopolymer internal components. The discharge head and motor adapter are precision-cast stainless steel. Supplied with an industrial heatshrink kit for waterproof electrical connections, the pump is designed for continuous submersion in liquids up to 35°C.

    FEATURES & BENEFITS

    • Floating impeller system permits sand handling up to 150 g/m3
    • Hexagonal stainless steel shaft provides effective impeller drive across all stages
    • Front wear ring works in conjunction with the floating impeller to improve abrasion resistance
    • Integrated non-return valve prevents backflow when the pump stops
    • AISI 304 stainless steel construction provides corrosion resistance in submerged environments
    • Technopolymer impeller provide lightweight technopolymer construction for smoother motor starts
    • Supplied with heatshrink kit for waterproof cable connections
    SPECIFICATIONS
    Specification Name Specification Value
    Pump Type Submersible Bore Pumps
    Max Flow 22.5 L/Min
    Max Head 69 m
    Pump Power 0.37 kW / 415v
    Rated Current 1.2 Amps
    Suitable For Sprinkler Systems
    Pump Body 304 Stainless Steel
    Liquid Temperature Maximum 35°C
    Inlet Size
    Outlet Size 32 mm
    Warranty 1 Year
    Documents
    Specification Sheet Download

    FAQs

    Find quick answers to common questions

    General Product FAQs

    1. How do I choose the right pump for my setup?

    Selecting the correct pump depends on your required flow (L/min), total head (vertical lift + friction loss), and power source. If you're unsure, contact our team and we’ll size the right system for you.

    2. Do you offer support with system design or setup?

    Yes — we provide expert advice to help you choose, install, and optimise your pump system. Whether it's a simple setup or a custom solution, we’re here to help.

    3. Do you offer complete pump solutions or just products?

    We don’t just sell pumps — we provide complete solutions. From accessories and control systems to full packaged setups, we can supply everything required to get your system running efficiently.

    Shipping & Availability

    1. Do you offer Australia-wide shipping?

    Yes — we ship across Australia. Bulk or oversized orders may incur additional freight charges otherwise we offer free shipping over $100*

    2. How long does delivery take?

    Orders are typically shipped within 1–2 business days, with delivery taking approximately 2–7 days depending on your location.

    3. What courier or freight companies do you use?

    We work with a range of trusted carriers including Australia Post, StarTrack, TNT, and other national freight providers depending on the size and location of your order. This allows us to ensure fast, reliable delivery across Australia, including regional and remote areas.

    Warranty & Support

    1. Do your pumps come with a warranty?

    Yes — all products are backed by manufacturer warranties. Warranty periods vary depending on the brand and product type.

    2. What support do you offer after purchase?

    We provide ongoing support including:

    • Installation advice
    • Troubleshooting
    • Spare parts supply
    • System upgrades
    3. What is the warranty process if something goes wrong?

    If you experience an issue, simply contact our team with your order details and a description of the problem. We’ll guide you through troubleshooting and, if required, arrange repair, replacement, or manufacturer assessment in line with warranty terms.

    Why choose Foundation Pumps?

    1. Why choose Foundation Pumps over other suppliers?

    We focus on supplying proven, high-quality pump solutions backed by real industry knowledge. Unlike general resellers, we understand how these systems perform in the field and provide honest, practical advice to ensure you get the right solution the first time.

    2. Do you offer expert advice before and after purchase?

    Yes — we support you at every stage, from selecting the right pump through to installation and ongoing use. Our team is available to assist with sizing, troubleshooting, and system optimisation whenever you need it.

    3. Do you stock trusted brands and quality products?

    We carefully select and supply pumps from reputable manufacturers known for reliability and performance. Our range includes both industry-leading brands and high-value alternatives that meet Australian standards and conditions.

    Can’t find your answer?

    Feel free to reach out to us!

    Recently viewed

    Last seen items