Instant Bank 
12 months interest free Choose quality and style with our range of large corrugated tanks, designed for superior performance and peace of mind.
These ultra strong tanks are engineered to last and compliment every landscape with their contemporary look.
Promax ENDURO tanks are so strong they are the only plastic water tanks in NZ that can be buried up to 1 metre in the ground and still retain a 20 year warranty!
- Bury up to 1 metre in the ground - can help to overcome height restrictions
- Free delivery to your property
- Corrugated side walls for extra strength
- One piece construction - reducing maintenance and costs
- 4 inlet panels for ease of installation
- 2 x 50mm threaded base outlets
- Clean, fresh untainted storage for drinking and household use
- Range of 7 Colours to suit your surroundings
- 20 year warranty
- Certification to AS/NZ 4766 - Polyethylene storage tank standard
| Code | Description | Capacity(L) | Diameter(mm) | Height(mm) | Weight(kg) | Manhole Dia(mm) | Outlets(mm) |
|---|---|---|---|---|---|---|---|
| EN1030000 | ENDURO Water Tank 30,000 Ltr | 30000 | 3660 | 3125 | 450 | 600 | 2x50 |
About Promax
Promax water tanks are built tough for New Zealand conditions, combining strength, durability, and long-lasting performance. The premium corrugated ENDURO range delivers maximum reliability over many years, while the XPRESS range provides the same trusted Promax quality at a more affordable price point.
Available in a wide range of sizes, shapes, and colours, Promax tanks are designed to blend into your property and meet any water storage need – from residential rainwater harvesting to commercial or agricultural use. With options for both above-ground and underground installation, there’s a Promax tank for every project.
Shop the full Promax range at Turfrey – your trusted supplier of water storage solutions in New Zealand.
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