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The new, more rectangular shape of the ENDURO Underground Tank brings a major advantage to the market by reducing excavation and backfill requirements, saving time and money.

Engineered by geotechnical experts and Finite Element Analysis tested (FEA), the Promax ENDURO Underground Tank is fully tested and designed to withstand ground and water pressure at depth and is suitable for the retention or detention of stormwater or the storage of potable water.

Distinctive Benefits:

  • Unique shape reduces excavation and backfill <20%
  • 10-year pro-rata warranty
  • Traffic rated for vehicles <10000 kg
  • Multiple Inlet/Outlet panels

Additional freight charges will apply to South Island orders.

Not Applicable
Details
Specifications
  • Code:UE1003500
  • Description:3,500L Underground Tank 1m Dia - ENDURO
  • Capacity (L):3500
  • Length (mm):3571
  • Width (mm):1250
  • Height (mm):1000
  • Weight (kg):150
  • Manhole Dia (mm):600
Underground Tanks

Promax underground tanks store water below ground where above-ground installation is not possible or permitted. Council requirements, space constraints, stormwater management: all resolved with a single solution. Available in the ENDURO and XPRESS series from 1,000L to 30,000L, with a full range of risers, lids, anchor systems, and installation kits. Made in New Zealand at our facilities in Kerikeri and Rangiora.

Promax underground tanks are used for stormwater detention and retention, potable water storage, and fire water supply. A single tank can serve two purposes: detaining excess stormwater during rainfall and storing water for household reuse.

Specify with Confidence

Whether you're presenting to council, helping a client choose the right tank, or working through consent requirements, a Promax Specifiers Pack gives you the technical resources to get it right first time.

Request a Specifiers Pack

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About the
Seller

Promax provides water tanks, liquid storage, and transport solutions to four sectors: Rural, Civil, Industrial, and Build. We combine exceptional design with manufacturing excellence to bring you a comprehensive range of products that look good and work even better.

We combine innovative design and manufacturing excellence to bring a comprehensive range of products to each sector. Our team constantly develops new solutions that keep pace with an ever-changing marketplace. Many of our products are customised to meet the requirements of specific projects, but we can also provide standard "off the shelf" answers.

Our team includes qualified engineers who use specialist software to create exceptional products, experienced sales representatives who work closely with their clients to provide customised solutions, and an exceptional customer service team who tirelessly support our customers. With North Island and South Island sites and a fleet of delivery trucks, we can provide superior products and customer service nationwide. 

Verified ArchiPro Member4 years · Since 2022