Enduramaxx’s range of Insulated Water Tanks is designed for use where temperature regulation is key and the prevention of overheating or freezing of liquids paramount. The tanks are available in 27 different capacities from 150 litres up to 40,000 litres. These single skin self-supporting plastic tanks are tough, durable, impact resistant and suitable for the storage of a wide range of liquid chemicals.

Our insulated water tanks are all fully DWI approved and meet the specific requirements of Regulation 31.

The Drinking Water Inspectorate (DWI) under the umbrella of the UK Government’s DEFRA (Department for Environmental, Food and Rural Affairs) states that; “Protection of public health of consumers through safeguarding the quality of drinking water is a key aspect of the drinking water quality regulatory framework” Regulation 31 ensures that water suppliers, when producing and distributing drinking water, only use products and substances that do not cause any detrimental effects on the safety or quality of the drinking water.

For Insulation Performance Information click here

  • 1250 Litre Insulated Water Tank

    1,250 Litre Insulated Water Tank

    SKU: INS1722050

    Features

    • Closed-cell structure provides built-in vapour barrier
    • Low maintenance and repair costs
    • Tank jacket UV resistant for outdoor use
    • Thermal conductivity value 40°C 0.042 W/(m • K)
    • Minimum energy loss through low thermal conductivity
    • Jacket available in 13mm or 25mm thickness
    • WRAS Approved Tank options available for Potable Water Storage
    • Type AB Airgap can be fitted to all WRAS approved tanks as an optional extra.
    • Dimensions (mm) 1200 dia x 1200 h
    • Lid: 455mm
    • Supplied as standard with a 1.5” Outlet (other options available)
    • 100% rust proof
    • UK manufactured
    • 10 year guarantee
    • Supplied direct from stock for fast delivery
      Please note: Tank sizes quoted are subject to a +/- 3% variation

    WRAS-Approved-Product

    £550.00£768.00

    In Stock

    1,250 Litre Insulated Water Tank

    £550.00£768.00
  • 1500 Litre Insulated Water Tank

    1,500 Litre Insulated Water Tank

    SKU: INS17220601

    Features

    • Closed-cell structure provides built-in vapour barrier
    • Low maintenance and repair costs
    • Tank jacket UV resistant for outdoor use
    • Thermal conductivity value 40°C 0.042 W/(m • K)
    • Minimum energy loss through low thermal conductivity
    • Jacket available in 13mm or 25mm thickness
    • WRAS Approved Tank options available for Potable Water Storage
    • Type AB Airgap can be fitted to all WRAS approved tanks as an optional extra.
    • Dimensions (mm) 1200 dia x 1680 h
    • Lid: 455mm
    • Supplied as standard with a 1.5” Outlet (other options available)
    • 100% rust proof
    • UK manufactured
    • 10 Year guarantee
    • Supplied direct from stock for fast delivery
      Please note: Tank sizes quoted are subject to a +/- 3% variation

    WRAS-Approved-Product

    £600.00£780.00

    In Stock

    1,500 Litre Insulated Water Tank

    £600.00£780.00
  • 11000 litre Insulated Water Tank

    11,000 litre Insulated Water Tank

    SKU: INS17222301

    Features

    • Closed-cell structure provides built-in vapour barrier
    • Low maintenance and repair costs
    • Tank jacket UV resistant for outdoor use
    • Thermal conductivity value 40°C 0.042 W/(m • K)
    • Minimum energy loss through low thermal conductivity
    • Jacket available in 13mm or 25mm thickness
    • WRAS Approved Tank options available for Potable Water Storage
    • Type AB Airgap can be fitted to all WRAS approved tanks as an optional extra.
    • Dimensions (mm) 2600 dia x 2470 h
    • Lid: 620mm
    • Supplied as standard with a 2” Outlet (other options available)
    • 1SG water grade
    • 100% rust proof
    • UK manufactured
    • 10 Year guarantee
    • Supplied direct from stock for fast delivery
      Please note: Tank sizes quoted are subject to a +/- 3% variation

    WRAS-Approved-Product

    £3,000.00£3,600.00

    In Stock

    11000 litre Insulated Water Tank 11000 litre Insulated Water Tank

    11,000 litre Insulated Water Tank

    £3,000.00£3,600.00
  • 12500 Litre Insulated Water Tank

    12,500 Litre Insulated Water Tank

    SKU: INS17222501

    Features

    • Closed-cell structure provides built-in vapour barrier
    • Low maintenance and repair costs
    • Tank jacket UV resistant for outdoor use
    • Thermal conductivity value 40 °C 0.042 W/(m • K)
    • Minimum energy loss through low thermal conductivity
    • Jacket available in 13mm or 25mm thickness
    • WRAS Approved Tank options available for Potable Water Storage
    • Type AB Airgap can be fitted to all WRAS approved tanks as an optional extra.
    • Dimensions (mm) 2600 dia x 2650 h
    • Lid: 620mm
    • Supplied as standard with a 2” Outlet (other options available)
    • 100% rust proof
    • UK manufactured
    • 10 year guarantee
    • Supplied direct from stock for fast delivery
      Please note: Tank sizes quoted are subject to a +/- 3% variation

    WRAS-Approved-Product

    £3,250.00£3,900.00

    In Stock

    12,500 Litre Insulated Water Tank

    £3,250.00£3,900.00
  • 14000 litre WRAS approved Insulated Vertical Tank

    14,000 Litre Insulated Water Tank

    SKU: INS17222801

    Features

    • Closed-cell structure provides built-in vapour barrier
    • Low maintenance and repair costs
    • Tank jacket UV resistant for outdoor use
    • Thermal conductivity value 40°C 0.042 W/(m • K)
    • Minimum energy loss through low thermal conductivity
    • Jacket available in 13mm or 25mm thickness
    • WRAS Approved Tank options available for Potable Water Storage
    • Type AB Airgap can be fitted to all WRAS approved tanks as an optional extra.
    • Dimensions (mm) 2600 dia x 2900 h
    • Lid: 620mm
    • Supplied as standard with a 2” Outlet (other options available)
    • 100% rust proof
    • UK manufactured
    • 10 Year guarantee
    • Supplied direct from stock for fast delivery
      Please note: Tank sizes quoted are subject to a +/- 3% variation

    WRAS-Approved-Product

    £3,500.00£4,200.00

    In Stock

    14,000 Litre Insulated Water Tank

    £3,500.00£4,200.00
  • 17223201 Enduramax 15000 litre Insulated Water Tank

    15,000 Litre Insulated Water Tank

    SKU: INS17223201

    Features

    • Closed-cell structure provides built-in vapour barrier
    • Low maintenance and repair costs
    • Tank jacket UV resistant for outdoor use
    • Thermal conductivity value 40°C 0.042 W/(m • K)
    • Minimum energy loss through low thermal conductivity
    • Jacket available in 13mm or 25mm thickness
    • WRAS Approved Tank options available for Potable Water Storage
    • Type AB Airgap can be fitted to all WRAS approved tanks as an optional extra.
    • Dimensions (mm) 2400 dia x 3550 h
    • Lid: 620mm
    • Supplied as standard with a 2” Outlet (other options available)
    • 1SG water grade
    • 100% rust proof
    • UK manufactured
    • 10 Year guarantee
    • Supplied direct from stock for fast delivery
      Please note: Tank sizes quoted are subject to a +/- 3% variation

    WRAS-Approved-Product

    £3,750.00

    In Stock

  • 15000 Litre Insulated Water Tank, Slimline

    15,000 Litre Insulated Water Tank, Slimline

    SKU: INS17222901

    Features

    • Closed-cell structure provides built-in vapour barrier
    • Low maintenance and repair costs
    • Tank jacket UV resistant for outdoor use
    • Thermal conductivity value 40°C 0.042 W/(m • K)
    • Minimum energy loss through low thermal conductivity
    • Jacket available in 13mm or 25mm thickness
    • WRAS Approved Tank options available for Potable Water Storage
    • Type AB Airgap can be fitted to all WRAS approved tanks as an optional extra.
    • Dimensions (mm) 2400 dia x 3550 h
    • Lid: 620mm
    • Supplied as standard with a 2” Outlet (other options available)
    • 100% rust proof
    • UK manufactured
    • 10 Year guarantee
    • Supplied direct from stock for fast delivery
      Please note: Tank sizes quoted are subject to a +/- 3% variation

    WRAS-Approved-Product

    £3,750.00

    In Stock

  • 16800 litre Insulated Water Tank

    16,800 Litre Insulated Water Tank

    SKU: INS17223001

    Features

    • Closed-cell structure provides built-in vapour barrier
    • Low maintenance and repair costs
    • Tank jacket UV resistant for outdoor use
    • Thermal conductivity value 40°C 0.042 W/(m • K)
    • Minimum energy loss through low thermal conductivity
    • Jacket available in 13mm or 25mm thickness
    • WRAS Approved Tank options available for Potable Water Storage
    • Type AB Airgap can be fitted to all WRAS approved tanks as an optional extra.
    • Dimensions (mm) 2600 dia x 3410 h
    • Lid: 620mm
    • Supplied as standard with a 2” Outlet (other options available)
    • 100% rust proof
    • UK manufactured
    • 10 Year guarantee
    • Supplied direct from stock for fast delivery
      Please note: Tank sizes quoted are subject to a +/- 3% variation

    WRAS-Approved-Product

    Call for Price

    In Stock

  • 2500 Litre Insulated Water Tank – WRAS Approved

    2,500 Litre Insulated Water Tank

    SKU: INS17221001

    Features

    • Closed-cell structure provides built-in vapour barrier
    • Low maintenance and repair costs
    • Tank jacket UV resistant for outdoor use
    • Thermal conductivity value 40°C 0.042 W/(m • K)
    • Minimum energy loss through low thermal conductivity
    • Jacket available in 13mm or 25mm thickness
    • WRAS Approved Tank options available for Potable Water Storage
    • Type AB Airgap can be fitted to all WRAS approved tanks as an optional extra.
    • Dimensions (mm) 1400 dia x 1800 h
    • Lid: 455mm
    • Supplied as standard with a 1.5” Outlet (other options available)
    • 100% rust proof
    • UK manufactured
    • 10 year guarantee
    • Supplied direct from stock for fast delivery
      Please note: Tank sizes quoted are subject to a +/- 3% variation

    WRAS-Approved-Product

    £990.00£1,345.00

    In Stock

    2,500 Litre Insulated Water Tank

    £990.00£1,345.00
  • 20000 Litre Insulated Water Tank – WRAS Approved

    20,000 Litre Insulated Water Tank

    SKU: INS17223801

    Features

    • Closed-cell structure provides built-in vapour barrier
    • Low maintenance and repair costs
    • Tank jacket UV resistant for outdoor use
    • Thermal conductivity value 40°C 0.042 W/(m • K)
    • Minimum energy loss through low thermal conductivity
    • Jacket available in 13mm or 25mm thickness
    • WRAS Approved Tank options available for Potable Water Storage
    • Type AB Airgap can be fitted to all WRAS approved tanks as an optional extra.
    • Dimensions (mm) 2850 dia x 3600 h
    • Lid: 620mm
    • Supplied as standard with a 2” Outlet (other options available)
    • 100% rust proof
    • UK manufactured
    • 10 Year guarantee
    • Supplied direct from stock for fast delivery
      Please note: Tank sizes quoted are subject to a +/- 3% variation

    WRAS-Approved-Product

    Call for Price

    In Stock

  • 22000 Litre Insulated Water Tank – WRAS Approved

    22,000 Litre Insulated Water Tank

    SKU: INS17225001

    Features

    • Closed-cell structure provides built-in vapour barrier
    • Low maintenance and repair costs
    • Tank jacket UV resistant for outdoor use
    • Thermal conductivity value 40°C 0.042 W/(m • K)
    • Minimum energy loss through low thermal conductivity
    • Jacket available in 13mm or 25mm thickness
    • WRAS Approved Tank options available for Potable Water Storage
    • Type AB Airgap can be fitted to all WRAS approved tanks as an optional extra.
    • Dimensions (mm) 3450 dia x 2750 h
    • Lid: 620mm
    • Supplied as standard with a 2” Outlet (other options available)
    • 100% rust proof
    • UK manufactured
    • 10 Year guarantee
    • Supplied direct from stock for fast delivery
      Please note: Tank sizes quoted are subject to a +/- 3% variation

    WRAS-Approved-Product

    Call for Price

    In Stock

  • 25000 litre Insulated Water Tank

    25,000 Litre Insulated Water Tank

    SKU: INS17225501

    Features

    • Closed-cell structure provides built-in vapour barrier
    • Low maintenance and repair costs
    • Tank jacket UV resistant for outdoor use
    • Thermal conductivity value 40°C 0.042 W/(m • K)
    • Minimum energy loss through low thermal conductivity
    • Jacket available in 13mm or 25mm thickness
    • WRAS Approved Tank options available for Potable Water Storage
    • Type AB Airgap can be fitted to all WRAS approved tanks as an optional extra.
    • Dimensions (mm) 3450 dia x 3200 h
    • Lid: 620mm
    • Supplied as standard with a 2” Outlet (other options available)
    • 100% rust proof
    • UK manufactured
    • 10 Year guarantee
    • Supplied direct from stock for fast delivery
      Please note: Tank sizes quoted are subject to a +/- 3% variation

    WRAS-Approved-Product

    Call for Price

    In Stock

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