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Enduramaxx Large Vertical Water Tanks
Pre-order - 7-14 Days
Selected tank: 500 L · CAT 5 · Ø700
- Model / SKU
- 17250701CAT5
- Nominal capacity
- 500 litres
- Tank type
- CAT 5 Type AB air-gap break tank
- Dimensions
- Ø 700 × H 2095 mm (manufacturer-listed nominal size)
- Discharge / outlet
- 1½-inch BSP outlet (standard manufacturer-listed size)
- Included lid
- 455 mm nominal lid diameter; non-vented
- Clear access opening
- Not separately confirmed. Lid/cover dimensions are not a guaranteed clear opening.
- Inlet / air gap
- Up to 25 mm, manufacturer-listed; confirm complete inlet and overflow arrangement
Selected tank: 500 L · non-potable · Ø700
- Model / SKU
- 17250501-NONPOTABLE
- Nominal capacity
- 500 litres
- Tank type
- Non-potable / confirm exact application
- Dimensions
- Ø 700 × H 1480 mm (manufacturer-listed nominal size)
- Discharge / outlet
- 1½-inch BSP outlet (standard manufacturer-listed size)
- Included lid
- 455 mm nominal lid diameter; vented
- Clear access opening
- Not separately confirmed. Lid/cover dimensions are not a guaranteed clear opening.
Selected tank: 720 L · non-potable · Ø700
- Model / SKU
- 17250701-NONPOTABLE
- Nominal capacity
- 720 litres
- Tank type
- Non-potable / confirm exact application
- Dimensions
- Ø 700 × H 2095 mm (manufacturer-listed nominal size)
- Discharge / outlet
- 1½-inch BSP outlet (standard manufacturer-listed size)
- Included lid
- 455 mm nominal lid diameter; vented
- Clear access opening
- Not separately confirmed. Lid/cover dimensions are not a guaranteed clear opening.
Selected tank: 1,250 L · non-potable · Ø1200
- Model / SKU
- 17210501
- Nominal capacity
- 1,250 litres
- Tank type
- Non-potable / confirm exact application
- Dimensions
- Ø 1200 × H 1245 mm (manufacturer-listed nominal size)
- Discharge / outlet
- 1½-inch BSP outlet (standard manufacturer-listed size)
- Included lid
- 455 mm nominal lid diameter; vented
- Clear access opening
- Not separately confirmed. Lid/cover dimensions are not a guaranteed clear opening.
Selected tank: 1,500 L · CAT 5 · Ø1200
- Model / SKU
- 17220601CAT5
- Nominal capacity
- 1,500 litres
- Tank type
- CAT 5 Type AB air-gap break tank
- Dimensions
- Ø 1200 × H 1980 / 2180 mm (height depends on inlet option)
- Discharge / outlet
- 1½-inch BSP outlet (standard manufacturer-listed size)
- Included lid
- 620 mm nominal lid diameter
- Clear access opening
- Not separately confirmed. Lid/cover dimensions are not a guaranteed clear opening.
- Inlet / air gap
- Up to 32 mm or up to 50 mm; confirm supplied inlet option before ordering
H1980 mm for an inlet up to 32 mm; H2180 mm for an inlet up to 50 mm. Select the required inlet/weir configuration.
Selected tank: 2,000 L · non-potable · Ø1200
- Model / SKU
- 17210801
- Nominal capacity
- 2,000 litres
- Tank type
- Non-potable / confirm exact application
- Dimensions
- Ø 1200 × H 2005 mm (manufacturer-listed nominal size)
- Discharge / outlet
- 1½-inch BSP outlet (standard manufacturer-listed size)
- Included lid
- 455 mm nominal lid diameter; vented
- Clear access opening
- Not separately confirmed. Lid/cover dimensions are not a guaranteed clear opening.
Selected tank: 2,000 L · CAT 5 · Ø1200
- Model / SKU
- 17220801CAT5
- Nominal capacity
- 2,000 litres
- Tank type
- CAT 5 Type AB air-gap break tank
- Dimensions
- Ø 1200 × H 2332 / 2532 mm (height depends on inlet option)
- Discharge / outlet
- 1½-inch BSP outlet (standard manufacturer-listed size)
- Included lid
- 620 mm nominal lid diameter
- Clear access opening
- Not separately confirmed. Lid/cover dimensions are not a guaranteed clear opening.
- Inlet / air gap
- Up to 32 mm or up to 50 mm; confirm supplied inlet option before ordering
H2332 mm for an inlet up to 32 mm; H2532 mm for an inlet up to 50 mm. Select the required inlet/weir configuration.
Selected tank: 2,500 L · CAT 5 · Ø1400
- Model / SKU
- 17221001CAT5
- Nominal capacity
- 2,500 litres
- Tank type
- CAT 5 Type AB air-gap break tank
- Dimensions
- Ø 1400 × H 2490 / 2690 mm (height depends on inlet option)
- Discharge / outlet
- Confirm before ordering: manufacturer page states both 1½-inch and 2-inch.
- Included lid
- 620 mm nominal lid diameter
- Clear access opening
- Not separately confirmed. Lid/cover dimensions are not a guaranteed clear opening.
- Inlet / air gap
- Confirm permitted inlet size and weir configuration for the supplied tank
H2490 mm for an inlet up to 32 mm; H2690 mm for an inlet up to 50 mm. Select the required inlet/weir configuration.
The manufacturer's feature list specifies a 1½-inch outlet, while its specification table specifies 2 inches. Please contact us to confirm the fitted connector before selecting pipework.
Selected tank: 2,500 L · non-potable · Ø1400
- Model / SKU
- 17211001
- Nominal capacity
- 2,500 litres
- Tank type
- Non-potable / confirm exact application
- Dimensions
- Ø 1400 × H 1845 mm (manufacturer-listed nominal size)
- Discharge / outlet
- 1½-inch BSP outlet (standard manufacturer-listed size)
- Included lid
- 455 mm nominal lid diameter; vented
- Clear access opening
- Not separately confirmed. Lid/cover dimensions are not a guaranteed clear opening.
Selected tank: 3,000 L · non-potable low profile · Ø1900
- Model / SKU
- 17210701
- Nominal capacity
- 3,000 litres
- Tank type
- Non-potable / confirm exact application
- Dimensions
- Ø 1900 × H 1270 mm (manufacturer-listed nominal size)
- Discharge / outlet
- 2-inch BSP outlet (standard manufacturer-listed size)
- Included lid
- 620 mm nominal lid diameter; vented
- Clear access opening
- Not separately confirmed. Lid/cover dimensions are not a guaranteed clear opening.
Selected tank: 3,000 L · non-potable · Ø1400
- Model / SKU
- 17211101
- Nominal capacity
- 3,000 litres
- Tank type
- Non-potable / confirm exact application
- Dimensions
- Ø 1400 × H 2205 mm (manufacturer-listed nominal size)
- Discharge / outlet
- 2-inch BSP outlet (standard manufacturer-listed size)
- Included lid
- 455 mm nominal lid diameter; vented
- Clear access opening
- Not separately confirmed. Lid/cover dimensions are not a guaranteed clear opening.
Selected tank: 4,000 L · CAT 5 · Ø1900
- Model / SKU
- 17221201CAT5
- Nominal capacity
- 4,000 litres
- Tank type
- CAT 5 Type AB air-gap break tank
- Dimensions
- Ø 1900 mm; overall height awaiting manufacturer
- Discharge / outlet
- 2-inch BSP outlet (existing catalogue; confirm supplied fitting)
- Included lid
- 620 mm nominal lid diameter
- Clear access opening
- Not separately confirmed. Lid/cover dimensions are not a guaranteed clear opening.
- Inlet / air gap
- Confirm permitted inlet size and weir configuration for the supplied tank
1900 mm diameter identifies the option in this listing. No exact current overall-height specification for 17221201CAT5 was found. Do not substitute the standard 4,000 L tank height for the CAT 5 tank.
Selected tank: 4,000 L · non-potable · Ø1700
- Model / SKU
- 17211301
- Nominal capacity
- 4,000 litres
- Tank type
- Non-potable / confirm exact application
- Dimensions
- Ø 1700 × H 2300 mm (manufacturer-listed nominal size)
- Discharge / outlet
- 2-inch BSP outlet (standard manufacturer-listed size)
- Included lid
- 620 mm nominal lid diameter; vented
- Clear access opening
- Not separately confirmed. Lid/cover dimensions are not a guaranteed clear opening.
Selected tank: 4,000 L · non-potable · Ø1900
- Model / SKU
- 17211201
- Nominal capacity
- 4,000 litres
- Tank type
- Non-potable / confirm exact application
- Dimensions
- Ø 1900 × H 1925 mm (manufacturer-listed nominal size)
- Discharge / outlet
- 2-inch BSP outlet (standard manufacturer-listed size)
- Included lid
- 620 mm nominal lid diameter; vented
- Clear access opening
- Not separately confirmed. Lid/cover dimensions are not a guaranteed clear opening.
Selected tank: 5,000 L · CAT 5 · Ø1900
- Model / SKU
- 17221501CAT5
- Nominal capacity
- 5,000 litres
- Tank type
- CAT 5 Type AB air-gap break tank
- Dimensions
- Ø 1900 × H 2800 mm (manufacturer-listed nominal size)
- Discharge / outlet
- 2-inch BSP outlet (standard manufacturer-listed size)
- Included lid
- 620 mm nominal lid diameter; non-vented
- Clear access opening
- Not separately confirmed. Lid/cover dimensions are not a guaranteed clear opening.
- Inlet / air gap
- Confirm permitted inlet size and weir configuration for the supplied tank
Selected tank: 5,000 L · non-potable · Ø1900
- Model / SKU
- 17211501
- Nominal capacity
- 5,000 litres
- Tank type
- Non-potable / confirm exact application
- Dimensions
- Ø 1900 × H 2270 mm (manufacturer-listed nominal size)
- Discharge / outlet
- 2-inch BSP outlet (standard manufacturer-listed size)
- Included lid
- 620 mm nominal lid diameter; vented
- Clear access opening
- Not separately confirmed. Lid/cover dimensions are not a guaranteed clear opening.
Selected tank: 6,000 L · CAT 5 · Ø1900
- Model / SKU
- 17221601CAT5
- Nominal capacity
- 6,000 litres
- Tank type
- CAT 5 Type AB air-gap break tank
- Dimensions
- Ø 1900 × H 3000 mm (manufacturer-listed nominal size)
- Discharge / outlet
- 2-inch BSP outlet (standard manufacturer-listed size)
- Included lid
- 620 mm nominal lid diameter; non-vented
- Clear access opening
- Not separately confirmed. Lid/cover dimensions are not a guaranteed clear opening.
- Inlet / air gap
- Confirm permitted inlet size and weir configuration for the supplied tank
Selected tank: 6,000 L · non-potable · Ø1900
- Model / SKU
- 17211601
- Nominal capacity
- 6,000 litres
- Tank type
- Non-potable / confirm exact application
- Dimensions
- Ø 1900 × H 2635 mm (manufacturer-listed nominal size)
- Discharge / outlet
- 2-inch BSP outlet (standard manufacturer-listed size)
- Included lid
- 620 mm nominal lid diameter; vented
- Clear access opening
- Not separately confirmed. Lid/cover dimensions are not a guaranteed clear opening.
Selected tank: 7,000 L · CAT 5 · Ø2400
- Model / SKU
- 17221701CAT5
- Nominal capacity
- 7,000 litres
- Tank type
- CAT 5 Type AB air-gap break tank
- Dimensions
- Ø 2400 × H 2320 mm (manufacturer-listed nominal size)
- Discharge / outlet
- 2-inch BSP outlet (standard manufacturer-listed size)
- Included lid
- 620 mm nominal lid diameter; non-vented
- Clear access opening
- Not separately confirmed. Lid/cover dimensions are not a guaranteed clear opening.
- Inlet / air gap
- Confirm permitted inlet size and weir configuration for the supplied tank
Selected tank: 7,000 L · non-potable · Ø2400
- Model / SKU
- 17211701
- Nominal capacity
- 7,000 litres
- Tank type
- Non-potable / confirm exact application
- Dimensions
- Ø 2400 × H 1865 mm (manufacturer-listed nominal size)
- Discharge / outlet
- 2-inch BSP outlet (standard manufacturer-listed size)
- Included lid
- 620 mm nominal lid diameter; vented
- Clear access opening
- Not separately confirmed. Lid/cover dimensions are not a guaranteed clear opening.
Selected tank: 10,000 L · CAT 5 · Ø2400
- Model / SKU
- 17222201CAT5
- Nominal capacity
- 10,000 litres
- Tank type
- CAT 5 Type AB air-gap break tank
- Dimensions
- Ø 2400 × H 3000 mm (manufacturer-listed nominal size)
- Discharge / outlet
- 2-inch BSP outlet (standard manufacturer-listed size)
- Included lid
- 620 mm nominal lid diameter; non-vented
- Clear access opening
- Not separately confirmed. Lid/cover dimensions are not a guaranteed clear opening.
- Inlet / air gap
- Confirm permitted inlet size and weir configuration for the supplied tank
Selected tank: 10,000 L · non-potable · Ø2400
- Model / SKU
- 17212201
- Nominal capacity
- 10,000 litres
- Tank type
- Non-potable / confirm exact application
- Dimensions
- Ø 2400 × H 2570 mm (manufacturer-listed nominal size)
- Discharge / outlet
- 2-inch BSP outlet (standard manufacturer-listed size)
- Included lid
- 620 mm nominal lid diameter; vented
- Clear access opening
- Not separately confirmed. Lid/cover dimensions are not a guaranteed clear opening.
Selected tank: 12,000 L · CAT 5 · Ø2400
- Model / SKU
- 17222601CAT5
- Nominal capacity
- 12,000 litres
- Tank type
- CAT 5 Type AB air-gap break tank
- Dimensions
- Ø 2400 × H 3400 mm (manufacturer-listed; version confirmation required)
- Discharge / outlet
- 2-inch BSP outlet (standard manufacturer-listed size)
- Included lid
- 620 mm nominal lid diameter
- Clear access opening
- Not separately confirmed. Lid/cover dimensions are not a guaranteed clear opening.
- Inlet / air gap
- Confirm permitted inlet size and weir configuration for the supplied tank
The feature specification lists Ø2400 × H3400; the description table lists Ø2600 × H3350 and additional information lists 2600 × 2600 × 3400. Manufacturer confirmation is required before access/base design.
Selected tank: 12,000 L · non-potable · Ø2400
- Model / SKU
- 17212601
- Nominal capacity
- 12,000 litres
- Tank type
- Non-potable / confirm exact application
- Dimensions
- Ø 2400 × H 2970 mm (manufacturer-listed nominal size)
- Discharge / outlet
- 2-inch BSP outlet (standard manufacturer-listed size)
- Included lid
- 620 mm nominal lid diameter; vented
- Clear access opening
- Not separately confirmed. Lid/cover dimensions are not a guaranteed clear opening.
Selected tank: 12,500 L · non-potable · Ø2600
- Model / SKU
- 17212501
- Nominal capacity
- 12,500 litres
- Tank type
- Non-potable / confirm exact application
- Dimensions
- Ø 2600 × H 2900 mm (manufacturer-listed nominal size)
- Discharge / outlet
- 2-inch BSP outlet (standard manufacturer-listed size)
- Included lid
- 620 mm nominal lid diameter; vented
- Clear access opening
- Not separately confirmed. Lid/cover dimensions are not a guaranteed clear opening.
Selected tank: 15,000 L · CAT 5 · Ø2600
- Model / SKU
- 17223201CAT5
- Nominal capacity
- 15,000 litres
- Tank type
- CAT 5 Type AB air-gap break tank
- Dimensions
- Ø 2600 × H 3500 mm (manufacturer-listed; version confirmation required)
- Discharge / outlet
- 2-inch BSP outlet (standard manufacturer-listed size)
- Included lid
- 620 mm nominal lid diameter; non-vented
- Clear access opening
- Not separately confirmed. Lid/cover dimensions are not a guaranteed clear opening.
- Inlet / air gap
- Confirm permitted inlet size and weir configuration for the supplied tank
The feature specification and description list Ø2600 × H3500; the additional-information table lists 2400 × 2400 × 4050. Confirm current mould/version.
Selected tank: 15,000 L · non-potable · Ø2400
- Model / SKU
- 17212901
- Nominal capacity
- 15,000 litres
- Tank type
- Non-potable / confirm exact application
- Dimensions
- Ø 2400 × H 3720 mm (manufacturer-listed nominal size)
- Discharge / outlet
- 2-inch BSP outlet (standard manufacturer-listed size)
- Included lid
- 620 mm nominal lid diameter; vented
- Clear access opening
- Not separately confirmed. Lid/cover dimensions are not a guaranteed clear opening.
Selected tank: 15,000 L · non-potable · Ø2600
- Model / SKU
- 17213201
- Nominal capacity
- 15,000 litres
- Tank type
- Non-potable / confirm exact application
- Dimensions
- Ø 2600 × H 3100 mm (manufacturer-listed nominal size)
- Discharge / outlet
- 2-inch BSP outlet (standard manufacturer-listed size)
- Included lid
- 620 mm nominal lid diameter; vented
- Clear access opening
- Not separately confirmed. Lid/cover dimensions are not a guaranteed clear opening.
Selected tank: 20,000 L · CAT 5 · Ø2850
- Model / SKU
- 17223801CAT5
- Nominal capacity
- 20,000 litres
- Tank type
- CAT 5 Type AB air-gap break tank
- Dimensions
- Ø 2850 × H 4100 mm (manufacturer-listed; version confirmation required)
- Discharge / outlet
- 2-inch BSP outlet (standard manufacturer-listed size)
- Included lid
- 620 mm nominal lid diameter; non-vented
- Clear access opening
- Not separately confirmed. Lid/cover dimensions are not a guaranteed clear opening.
- Inlet / air gap
- Confirm permitted inlet size and weir configuration for the supplied tank
The feature specification and additional information list Ø2850 × H4100; another page table gives diameter3450. Confirm current diameter and overall height.
Selected tank: 20,000 L · non-potable · Ø2850
- Model / SKU
- 17213801
- Nominal capacity
- 20,000 litres
- Tank type
- Non-potable / confirm exact application
- Dimensions
- Ø 2850 × H 3620 mm (manufacturer-listed nominal size)
- Discharge / outlet
- 2-inch BSP outlet (standard manufacturer-listed size)
- Included lid
- 620 mm nominal lid diameter; vented
- Clear access opening
- Not separately confirmed. Lid/cover dimensions are not a guaranteed clear opening.
Selected tank: 22,000 L · non-potable · Ø3450
- Model / SKU
- 17215001
- Nominal capacity
- 22,000 litres
- Tank type
- Non-potable / confirm exact application
- Dimensions
- Ø 3450 × H 2800 mm (manufacturer-listed nominal size)
- Discharge / outlet
- 2-inch BSP outlet (standard manufacturer-listed size)
- Included lid
- 620 mm nominal lid diameter; vented
- Clear access opening
- Not separately confirmed. Lid/cover dimensions are not a guaranteed clear opening.
Selected tank: 25,000 L · CAT 5 · Ø2700
- Model / SKU
- 17224001CAT5
- Nominal capacity
- 25,000 litres
- Tank type
- CAT 5 Type AB air-gap break tank
- Dimensions
- Ø 2700 × H 5150 mm (manufacturer-listed nominal size)
- Discharge / outlet
- 2-inch BSP outlet (standard manufacturer-listed size)
- Included lid
- 620 mm nominal lid diameter
- Clear access opening
- Not separately confirmed. Lid/cover dimensions are not a guaranteed clear opening.
- Inlet / air gap
- Confirm permitted inlet size and weir configuration for the supplied tank
Selected tank: 25,000 L · non-potable · Ø2700
- Model / SKU
- 17214001
- Nominal capacity
- 25,000 litres
- Tank type
- Non-potable / confirm exact application
- Dimensions
- Ø 2700 × H 4720 mm (manufacturer-listed nominal size)
- Discharge / outlet
- 2-inch BSP outlet (standard manufacturer-listed size)
- Included lid
- 620 mm nominal lid diameter; vented
- Clear access opening
- Not separately confirmed. Lid/cover dimensions are not a guaranteed clear opening.
Selected tank: 25,000 L · non-potable · Ø3450
- Model / SKU
- 17215501
- Nominal capacity
- 25,000 litres
- Tank type
- Non-potable / confirm exact application
- Dimensions
- Ø 3450 × H 3100 mm (manufacturer-listed; version confirmation required)
- Discharge / outlet
- 2-inch BSP outlet (standard manufacturer-listed size)
- Included lid
- 620 mm nominal lid diameter; vented
- Clear access opening
- Not separately confirmed. Lid/cover dimensions are not a guaranteed clear opening.
The feature specification and description list Ø3450 × H3100; additional information lists 3450 × 3200 × 3200. Confirm current overall height.
Selected tank: 30,000 L · non-potable · Ø3450
- Model / SKU
- 17216001
- Nominal capacity
- 30,000 litres
- Tank type
- Non-potable / confirm exact application
- Dimensions
- Ø 3450 × H 3650 mm (manufacturer-listed nominal size)
- Discharge / outlet
- 2-inch BSP outlet (standard manufacturer-listed size)
- Included lid
- 620 mm nominal lid diameter; vented
- Clear access opening
- Not separately confirmed. Lid/cover dimensions are not a guaranteed clear opening.
Need help choosing fittings for this tank? Contact us for advice on compatible valves and adaptors.
Regular price
Sale price
£554.40
Regular price
£627.15
Shipping calculated at checkout.
Secure checkout
This Enduramaxx range covers large, above-ground vertical water-storage tanks from 500 to 30,000 litres. The options include standard non-potable tanks and dedicated CAT 5 Type AB break tanks, so the full specification below must be checked before ordering.
5,000 litres and above: price on application
For tank options of 5,000 litres and above, please request a quote before ordering. We will confirm the tank price, delivery to your postcode, site access and offloading requirements. These sizes are not available to buy online. Smaller sizes remain available to order at the displayed price.
Tank dimensions by model
Nominal dimensions in millimetres. L = length, W = width, H = height, Ø = diameter. Updated rows use Enduramaxx drawings and clarification supplied on 2 November 2026; other rows retain existing manufacturer specifications. Read each row’s measurement and configuration notes. Allow installation and maintenance clearance, including the manufacturer’s ±3% tolerance where stated. Nominal lid/cover size is not the clear access opening.
| Tank / model | Dimensions (mm) | Standard outlet | Nominal lid / cover (mm) |
|---|---|---|---|
|
5,000 L · CAT 5 · Ø1900 17221501CAT5 |
Ø 1900 × H 2800 |
2-inch male BSP | 620 |
|
5,000 L · non-potable · Ø1900 17211501 |
Ø 1900 × H 2270 |
2-inch male BSP | 620 |
|
6,000 L · CAT 5 · Ø1900 17221601CAT5 |
Ø 1900 × H 3000 |
2-inch male BSP | 620 |
|
6,000 L · non-potable · Ø1900 17211601 |
Ø 1900 × H 2635 |
2-inch male BSP | 620 |
|
7,000 L · CAT 5 · Ø2400 17221701CAT5 |
Ø 2400 × H 2320 |
2-inch male BSP | 620 |
|
7,000 L · non-potable · Ø2400 17211701 |
Ø 2400 × H 1865 |
2-inch male BSP | 620 |
|
10,000 L · CAT 5 · Ø2400 17222201CAT5 |
Ø 2400 × H 3000 |
2-inch male BSP | 620 |
|
500 L · CAT 5 · Ø700 17250701CAT5 |
Ø 700 × H 2095 |
1½-inch male BSP | 455 |
|
500 L · non-potable · Ø700 17250501-NONPOTABLE |
Ø 700 × H 1480 |
1½-inch male BSP | 455 |
|
720 L · non-potable · Ø700 17250701-NONPOTABLE |
Ø 700 × H 2095 |
1½-inch male BSP | 455 |
|
1,250 L · non-potable · Ø1200 17210501 |
Ø 1200 × H 1245 |
1½-inch male BSP | 455 |
|
1,500 L · CAT 5 · Ø1200 17220601CAT5 |
Ø 1200 × H 1980 32 mm inlet configuration. Enduramaxx confirms its smaller CAT 5 tanks are supplied only with the 32 mm inlet option. |
1½-inch male BSP | 620 |
|
2,000 L · non-potable · Ø1200 17210801 |
Ø 1200 × H 2005 |
1½-inch male BSP | 455 |
|
2,000 L · CAT 5 · Ø1200 17220801CAT5 |
Ø 1200 × H 2332 32 mm inlet configuration. Enduramaxx confirms its smaller CAT 5 tanks are supplied only with the 32 mm inlet option. |
1½-inch male BSP | 620 |
|
20,000 L · CAT 5 · Ø2850 17223801CAT5 |
Ø 2846 × H 4090 Drawing dimension is 2846 mm diameter; the variant is nominally labelled Ø2850. Overall height includes the illustrated Type AB turret, for an inlet up to 2 inches. Confirm the required inlet arrangement when ordering. |
2-inch male BSP | 620 |
|
20,000 L · non-potable · Ø2850 17213801 |
Ø 2850 × H 3620 |
2-inch male BSP | 620 |
|
22,000 L · non-potable · Ø3450 17215001 |
Ø 3450 × H 2800 |
2-inch male BSP | 620 |
|
25,000 L · CAT 5 · Ø2700 17224001CAT5 |
Ø 2700 × H 5150 |
2-inch male BSP | 620 |
|
25,000 L · non-potable · Ø2700 17214001 |
Ø 2700 × H 4720 |
2-inch male BSP | 620 |
|
25,000 L · non-potable · Ø3450 17215501 |
Ø 3450 × H 3100 Size information: The feature specification and description list Ø3450 × H3100; additional information lists 3450 × 3200 × 3200. Confirm current overall height. |
2-inch male BSP | 620 |
|
30,000 L · non-potable · Ø3450 17216001 |
Ø 3450 × H 3650 |
2-inch male BSP | 620 |
|
10,000 L · non-potable · Ø2400 17212201 |
Ø 2400 × H 2570 |
2-inch male BSP | 620 |
|
12,000 L · CAT 5 · Ø2400 17222601CAT5 |
Ø 2400 × H 3440 Overall dimensions including the illustrated Type AB air-gap turret, for an inlet up to 2 inches. Confirm the required inlet arrangement when ordering. |
2-inch male BSP | 620 |
|
12,000 L · non-potable · Ø2400 17212601 |
Ø 2400 × H 2970 |
2-inch male BSP | 620 |
|
12,500 L · non-potable · Ø2600 17212501 |
Ø 2600 × H 2900 |
2-inch male BSP | 620 |
|
15,000 L · CAT 5 · Ø2600 17223201CAT5 |
Ø 2600 × H 3570 Overall dimensions including the illustrated Type AB air-gap turret, for an inlet up to 2 inches. Confirm the required inlet arrangement when ordering. |
2-inch male BSP | 620 |
|
15,000 L · non-potable · Ø2400 17212901 |
Ø 2400 × H 3720 |
2-inch male BSP | 620 |
|
15,000 L · non-potable · Ø2600 17213201 |
Ø 2600 × H 3100 |
2-inch male BSP | 620 |
|
2,500 L · CAT 5 · Ø1400 17221001CAT5 |
Ø 1400 × H 2490 32 mm inlet configuration. Enduramaxx confirms its smaller CAT 5 tanks are supplied only with the 32 mm inlet option. |
Please contact us | 620 |
|
2,500 L · non-potable · Ø1400 17211001 |
Ø 1400 × H 1845 |
1½-inch male BSP | 455 |
|
3,000 L · non-potable low profile · Ø1900 17210701 |
Ø 1900 × H 1270 |
2-inch male BSP | 620 |
|
3,000 L · non-potable · Ø1400 17211101 |
Ø 1400 × H 2205 |
2-inch male BSP | 455 |
|
4,000 L · CAT 5 · Ø1900 17221201CAT5 |
Ø 1900 × H 2395 Overall dimensions including the illustrated Type AB air-gap turret, for an inlet up to 2 inches. Confirm the required inlet arrangement when ordering. |
Please contact us | Please contact us |
|
4,000 L · non-potable · Ø1700 17211301 |
Ø 1700 × H 2300 |
2-inch male BSP | 620 |
|
4,000 L · non-potable · Ø1900 17211201 |
Ø 1900 × H 1925 |
2-inch male BSP | 620 |
Manufacturer dimensioned drawings
Download Enduramaxx dimensioned drawings (PDF) for 4,000 L, 12,000 L, 15,000 L and 20,000 L CAT 5 tanks. These are manufacturer drawings supplied on 2 November 2026. Match the model and inlet/turret configuration before using a drawing for access or base planning.
Choose the correct tank type
- Non-potable: for compatible irrigation, rainwater, process-water and wash-down applications where drinking-water certification is not required.
- CAT 5 Type AB: incorporates an air-gap weir for a correctly designed installation requiring Fluid Category 5 backflow protection.
Each tank is rotationally moulded from medium-density polyethylene. The full specifications below give capacity, dimensions, lid and BSP outlet by option. Several capacities have more than one footprint or height, so compare the full dimensions rather than capacity alone.
Enduramaxx confirms the smaller CAT 5 tanks are supplied with the 32 mm inlet option; the 1,500 L, 2,000 L and 2,500 L CAT 5 table rows refer to that configuration. Where larger tanks are offered with different inlet options, these are separate manufacturer products; check the exact required inlet before ordering. Confirm usable volume, water classification, inlet and overflow requirements, outlet size, supporting base, access and offloading before ordering. CAT 5 compliance depends on the complete installed arrangement, while a non-potable variant must not be assumed suitable for drinking water.
Unsure which thread you need?
Read our BSP, NPT & ACME thread buyer’s guideCheck the thread type, size and seal before ordering.
Manufacturer guides and drawing
- Vertical above-ground tank installation guide (PDF) - base, handling and fittings for this vertical range.
- Fluid Category 5 air-gap guide (PDF) - relevant to the Type AB options only.
- 500 L CAT 5 tank drawing (PDF) - for SKU 17250701CAT5 only.
Tank outlet and blanking cap
The standard tank connector/outlet has a male BSP thread. See the specifications for the outlet size of your selected tank.
A red protective cap is supplied on the outlet. If you will not be using this outlet, a matching female BSP Hansen cap must be purchased separately to blank it off. Choose the same nominal BSP size as the tank outlet.
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