Promax Plastics combines inspired design with manufacturing excellence to bring you comprehensive range of superior water storage tanks, underground storage tanks, and diesel tanks that look good and work better.

Our whole team are focused on producing our innovative water storage products to the highest quality standards in the market.

Apart from this, we also pride ourselves with providing the number 1 service in New Zealand. We understand that each project and customer requirements are different, and we also know that delivering on time is necessary.

Over 80% of our customers recommend us to their friends because of our excellent water storage products and customer service!

We're always expanding our range to provide our customers a wider choice of superior polyethylene products. Check out our latest additions - Promax Water Storage Tanks, Industrial Tanks, Underground Storage Tanks, Plastic Water Tankers, Plastic Water Carts, Plastic Stormwater Tanks, Plastic Detention Tanks, Septic Tanks, Retention Tanks and XPRESS Diesel Tanks and Units.

With a range this large, you're bound to find what you need!