Roll over image to zoom
SKU: 4GS03-1
Lowara 4GS03-1 304 Stainless Steel 4" Submersible Bore Pump with Control Box
Australia-Wide
(08) 9240 2992
Official Lowara
Peace of Mind
Product Overview
The Lowara 4GS03-1 is a high-quality 4" stainless steel submersible bore pump designed for reliable water supply from deep bores and wells. Built with a high content of AISI 304 stainless steel and precision-engineered components, the pump provides excellent durability and corrosion resistance in demanding groundwater applications.
The multistage centrifugal design delivers efficient performance across a wide operating range, while the floating impeller system helps minimise wear caused by sand and abrasive particles commonly found in bore water. This design ensures longer pump life and dependable performance in rural, residential and irrigation applications.
Supplied with a control box for simple installation and motor protection, the 4GS03-1 system is ideal for domestic water supply, stock watering, irrigation systems and water transfer where a compact and efficient bore pump solution is required.
FEATURES
- 4" submersible multistage bore pump
- High-grade AISI 304 stainless steel construction
- Floating impeller design for increased wear resistance
- Maximum flow: 90 L/Min
- Maximum head: 25 m
- Suitable for clean water applications
- Single phase motor with control box included
- IP68 rated motor for underwater operation
- Ideal for domestic water supply, bores and irrigation systems
- Compact and efficient bore pump solution
SPECIFICATIONS
| Max Flow | 90 L/Min |
| Max Head | 25 m |
| Power | 0.37 kW / 240v |
| Rated Current | 3.2 Amps |
| Suitable For | Bore Water / Irrigation / Domestic Supply / Stock Watering |
| Body Material | 304 Stainless Steel |
| Liquid Temperature | Maximum 35°C |
| Outlet Size | 32 mm |
| Warranty | 24 Months |
Warranty & Returns
All products supplied by Foundation Pumps are covered by a minimum 12-month warranty unless otherwise stated. Some brands may offer longer manufacturer warranties. Warranty covers manufacturing defects, faulty materials and workmanship under normal use.
- Products must be installed correctly and in accordance with the manufacturer’s instructions.
- Warranty does not cover incorrect installation, misuse, dry running, normal wear and tear, unauthorised repairs or damage caused by external factors.
- Proof of purchase, photos, videos and installation details may be requested when assessing a warranty claim.
- The customer is responsible for returning the product to Foundation Pumps or the nominated service centre unless otherwise agreed.
- Removal, reinstallation, labour and associated site costs are generally the customer’s responsibility unless required under Australian Consumer Law.
- Change-of-mind returns may be accepted within 30 days provided the product is unused, uninstalled and returned in its original packaging.
- Customers are responsible for return freight costs for change-of-mind returns.
- Restocking fees may apply to special-order, bulky or non-stocked products.
- Used, installed or specially ordered products may not be eligible for change-of-mind returns.
- If a product arrives damaged or faulty, please contact Foundation Pumps as soon as possible so we can assist with the appropriate repair, replacement or refund.
Your rights under Australian Consumer Law are not affected.
What dynamic elevation head can this borehole pump achieve when drawing from deep aquifers?
Pumping from deep groundwater reserves, the 4GS03-1 delivers a maximum dynamic head of approximately 25 m across its operating envelope.
What water flow rate is supported by this submersible pump?
Delivering steady water transfer, the 4GS-03-1 generates a peak flow rate of approximately 90 L/Min under optimal pumping conditions.
How does this borehole pump resist harsh well minerals and suspended abrasive sand grit?
Corrosion defense in aggressive groundwater is provided by AISI 304 stainless steel casing, floating Lexan impellers, and Noryl diffusers, allowing the 4GS 03 1 to tolerate abrasive sand up to 150 g/m³ across its 4 stages.
What electrical supply and motor power are required to run this submersible bore pump?
Electrical power input for the 4GS_03_1 requires a 0.37 kW rating on a 220–240 V, 50 Hz, single-phase power supply, paired with a 4OS motor with dedicated control box featuring IP68 submersible protection.
How does the integrated non-return check valve protect this borehole pump against reverse flow?
Submersible installation for the 4GS03-1 requires a minimum 4-inch borehole installations with a vertical discharge connection of Rp 1-1/4" (32 mm), submerged up to 150 meters with an integrated non-return check valve protecting against backflow.
Need help choosing the right pump?
Our team of pump experts are here to help you find the perfect solution for your application.
- Free expert advice
- Pump sizing & system recommendations
- Fast response — call or email us











