Durable Water Tanks,
Built to last.

Australia’s leading manufacturer of high-quality water tanks and storage solutions. Our large water tank range caters to various industries, offering rainwater tanks in sizes ranging from 200 to 50,000 litres. Whether you’re in agriculture, chemical supply, mining, or urban environments, we have the perfect water storage solution for you.

Premium Rainwater Tanks for Every Need.

Polymaster offers an extensive range of water tanks for sale, with a large range of sizes, including large rainwater tanks and underground tanks, all crafted from premium food-grade polyethylene. We take pride in being certified to AS/NZS4020, the Australian standard for drinking water, and maintaining ISO9001 quality management certification.

At Polymaster, our commitment goes beyond manufacturing. We provide exceptional pre-sales and post-sales support, ensuring you make an informed decision and receive ongoing assistance. As Australia’s leading rainwater tank manufacturer, we stand by the durability and quality of our products, offering up to a 20-year warranty.

When you choose Polymaster, you’re choosing more than a tank; you’re choosing a partner in sustainable water solutions. Our tanks are not just built to last; they are designed to thrive in the industries we serve, with a remarkable 25-year design life. Trust us for excellence in water storage—because every drop matters.

Round Rainwater Tanks
Ranges from 200ltr up to 50KL. Smooth wall or corrugated finish. Up to 20-year warranty.
View range Round Rainwater Tanks
Slimline Tanks & Pumps
Ranges from 600ltr to 5,000lltr. Builders tank and pump packages available. Up to 10-year warranty.
View range Slimline Tanks & Pumps
Underground Water Tanks
Available in 3300ltr and 5,000ltr options. Garden pump/household pump packages. 10-year warranty.
View range Underground Water Tanks
Retention and Detention Tanks
Meet council requirements with a retention and detention tanks.
View range Retention and Detention Tanks
Pipeline Tanks
These tanks are designed to be connected to pipelines for stock and domestic water supply.
View range Pipeline Tanks
Pumps & Tank Accessories
To compliment your water tank, we have water pumps, inspection covers, filters, and other accessories.
View range Pumps & Tank Accessories