Description
Connect your tanks with the length you need
This 1.5-inch water-butt linking kit brings together two straight tank fittings and a chosen length of black 40mm corrugated hose.
Use the length selector for a 1m, 2m, 3m, 4m or 5m hose. The fitting size stays the same across all five options, so the choice here is the length needed between your planned mounting points.
Two retaining nuts and two sealing washers are included. Tanks and installation extras are separate.
The parts for both ends of the link
The kit contains one hose length and two matching straight tank fittings. Each fitting connects the tank to the hose: a male 1.5-inch BSP thread at one end, a barbed hosetail at the other, plus its nut and sealing washer.
The hose is flexible PVC with a corrugated outer profile. It is described as smooth-bore hose, but the inside is still profiled: its ridges are smoothed rather than forming a completely flat inner wall.
The photograph shows the actual kit components. The hose length you receive follows your selection. Hose clips and drilling tools are not listed as included parts.
Measure the route, then choose the length
Follow the path the hose will take rather than measuring only the gap between the tanks.
Check the mounting points
Make sure both tanks have suitable surfaces for the fittings and room inside for the nuts. Check the opening against the actual fitting before drilling: 1.5-inch BSP is a thread designation, not a hole-saw size.
Allow for bends and slack
Measure between the chosen mounting positions, allowing for the hose ends, bends and slack. Choose from the five offered lengths and avoid a route that forces a tight turn immediately beside a fitting.
Support and water-test
Check the fit at each hosetail and select any clips to suit the actual assembly. Support the hose so it does not pull on the tank wall. Test both tank seals and hose joints before leaving the connection in use.
Questions about this 1.5-inch kit
What changes when I choose a different length?
Only the selected hose length: 1m, 2m, 3m, 4m or 5m. Every option includes two straight 1.5-inch BSP fittings, two retaining nuts and two sealing washers.
Is the supplied hose 38mm or 40mm?
The hose component used in this kit is nominal 40mm, commonly labelled 1.5-inch. The tank fitting has a separate 1.5-inch BSP thread designation. Check the actual components for installation measurements rather than converting the inch label into a drilling size.
Is the inside of smooth-bore hose completely flat?
No. This corrugated hose has profiled internal ridges with a smoothed surface. Smooth bore is the description for this hose type, rather than a claim that it has a flat, unprofiled inner wall.
Does this include the tanks and hose clips?
No. You receive the chosen hose length, two straight tank fittings, two nuts and two washers. Tanks, clips and drilling tools are separate. Check the connection fit and test for leaks before leaving the assembly in service.
Product information & technical details
| SKU | WB15LINK-001M |
|---|---|
| Product type | |
| Length | 1m, 2m, 3m, 4m, 5m |
| Internal diameter | 40mm (1.5") |
| BSP thread size | 1.5" |
| Thread gender | Male |
| Barb size | 38mm (1.5") |
| Kit parts | Corrugated Hose, Overflow Fitting |
| Colour | Black |
|---|---|
| Material | Plastic |
| Available options | Hose lengths listed are available choices. Each kit supplies one continuous selected hose length and two fittings in the chosen BSP size. |
| Supplied parts | 1 hose length, 2 straight fittings, 2 nuts and 2 washers |
| Hose construction | Corrugated PVC; smooth-bore type with profiled inner ridges |
| Pack quantity | 1 kit in the selected hose length |
| Not included | Water butts, hose clips and drilling tools |
What is BSP?
What is BSP thread size?
BSP (British Standard Pipe) is a nominal pipe-thread size, not a direct measurement of a fitting’s bore or outside diameter. For example, a ½-inch BSP male thread measures about 21mm across its outer thread crests.
These figures are approximate outside diameters of male BSP threads, to help identify the nominal size. They are not inch-to-millimetre unit conversions:
- 3/8" BSP → 16.66 mm
- 1/2" BSP → 20.95 mm
- 3/4" BSP → 26.44 mm
- 1" BSP → 33.25 mm
- 1.25" BSP → 41.91 mm
- 1.5" BSP → 47.80 mm
- 2" BSP → 59.61 mm
- 3" BSP → 87.88 mm
- 4" BSP → 113.03 mm
All our BSP threads are parallel (BSPP, to ISO 228), not tapered.
Measure across the outside of a male thread, then check its pitch and whether it is parallel or tapered. Diameter alone does not confirm compatibility. Check the product’s stated thread specification before connecting.
All delivery times are estimates and not guaranteed. Orders placed before 1 pm, Monday to Friday (excluding bank holidays), will be dispatched the same day, while orders placed after 1 pm will be dispatched by the end of the next working day.
If an invalid postcode or address is provided, the order will be cancelled without further notice, as we are unable to modify addresses or print labels for invalid postcodes.
Our standard delivery option is Royal Mail Tracked 48, which typically takes 3–5 business days. If you need your order more quickly, Expedited delivery via Royal Mail Tracked 24 is available, offering a 1–2 business day service.
Large or bulky items may be sent via courier at our discretion and are usually dispatched for next-day delivery. Please note that we only ship to mainland UK addresses; delivery to non-mainland locations, including the Highlands & Islands, may not be available for large or heavy items. If your address falls into one of these areas and you wish to purchase such items, please contact us with your postcode and order details before placing your order. If we cannot ship to you, you are welcome to arrange your own courier for collection.
All products, unless otherwise stated, come with a standard manufacturer warranty against faulty workmanship.
If your product fails within six months of delivery, please contact us with your order reference number, a description of the issue, and clear images illustrating the fault.
Should your item require a return for further investigation, it is your responsibility to arrange and cover postage back to us.
If we are unable to repair the fault, we may offer either a replacement or a full refund.
In cases where the item is inspected and found not to be faulty, or where damage is determined not to be due to manufacturing defects, you will not be entitled to a refund or replacement. We will then either return the item to you via standard post or dispose of it at your request.
You may return any order within 14 days of delivery. As soon as you receive your items, please inspect them carefully, taking reasonable care to keep both the product and its packaging clean and undamaged. If you discover an error or defect after 14 days, we reserve the right to decline your return. If your product fails or breaks after this 14-day time window then your order may be eligible for a warranty claim, please see our warranty information for more details.
To initiate a return, please contact us via our contact form to obtain a return authorisation and the correct returns address (different from the address on your invoice). This can also be done through your 'recent orders' page on your account if you are registered with Shop. Returns sent without prior authorisation will be discarded.
Returned items must be in the same condition in which you received them: unworn or unused, with tags attached and in their original packaging. You must include either a copy of your invoice or a slip with your order reference number inside the parcel. Please be sure not to obscure your return reference number on the label.
If you refuse delivery or reject the parcel without prior notice, we will inspect the returned package and issue a refund upon receipt. Although there is no restocking fee, we will deduct the cost of the return postage label (£3.35) from your refund.
If the returned item or its packaging shows signs of use, damage, or staining, we may deduct up to 50% of the order value, or refuse the return entirely, depending on its condition. Examples include damaged tags, stained, modified or damaged packaging, or missing components.
For faulty, incorrect, or damaged items, please contact us before sending anything back so we can attempt to resolve the issue directly. If we agree that a return is necessary due to our error, we will provide you with a pre-paid return label.
Products that have been modified or damaged through customer action are not eligible for return. This includes, but is not limited to, items that have been cut, trimmed or otherwise altered (such as a tarpaulin or pond liner resized to your specifications), or any product showing damage beyond normal inspection handling.
All delivery times are estimates and not guaranteed. Orders placed before 1 pm, Monday to Friday (excluding bank holidays), will be dispatched the same day, while orders placed after 1 pm will be dispatched by the end of the next working day.
If an invalid postcode or address is provided, the order will be cancelled without further notice, as we are unable to modify addresses or print labels for invalid postcodes.
Our standard delivery option is Royal Mail Tracked 48, which typically takes 3–5 business days. If you need your order more quickly, Expedited delivery via Royal Mail Tracked 24 is available, offering a 1–2 business day service.
Large or bulky items may be sent via courier at our discretion and are usually dispatched for next-day delivery. Please note that we only ship to mainland UK addresses; delivery to non-mainland locations, including the Highlands & Islands, may not be available for large or heavy items. If your address falls into one of these areas and you wish to purchase such items, please contact us with your postcode and order details before placing your order. If we cannot ship to you, you are welcome to arrange your own courier for collection.
All products, unless otherwise stated, come with a standard manufacturer warranty against faulty workmanship.
If your product fails within six months of delivery, please contact us with your order reference number, a description of the issue, and clear images illustrating the fault.
Should your item require a return for further investigation, it is your responsibility to arrange and cover postage back to us.
If we are unable to repair the fault, we may offer either a replacement or a full refund.
In cases where the item is inspected and found not to be faulty, or where damage is determined not to be due to manufacturing defects, you will not be entitled to a refund or replacement. We will then either return the item to you via standard post or dispose of it at your request.
You may return any order within 14 days of delivery. As soon as you receive your items, please inspect them carefully, taking reasonable care to keep both the product and its packaging clean and undamaged. If you discover an error or defect after 14 days, we reserve the right to decline your return. If your product fails or breaks after this 14-day time window then your order may be eligible for a warranty claim, please see our warranty information for more details.
To initiate a return, please contact us via our contact form to obtain a return authorisation and the correct returns address (different from the address on your invoice). This can also be done through your 'recent orders' page on your account if you are registered with Shop. Returns sent without prior authorisation will be discarded.
Returned items must be in the same condition in which you received them: unworn or unused, with tags attached and in their original packaging. You must include either a copy of your invoice or a slip with your order reference number inside the parcel. Please be sure not to obscure your return reference number on the label.
If you refuse delivery or reject the parcel without prior notice, we will inspect the returned package and issue a refund upon receipt. Although there is no restocking fee, we will deduct the cost of the return postage label (£3.35) from your refund.
If the returned item or its packaging shows signs of use, damage, or staining, we may deduct up to 50% of the order value, or refuse the return entirely, depending on its condition. Examples include damaged tags, stained, modified or damaged packaging, or missing components.
For faulty, incorrect, or damaged items, please contact us before sending anything back so we can attempt to resolve the issue directly. If we agree that a return is necessary due to our error, we will provide you with a pre-paid return label.
Products that have been modified or damaged through customer action are not eligible for return. This includes, but is not limited to, items that have been cut, trimmed or otherwise altered (such as a tarpaulin or pond liner resized to your specifications), or any product showing damage beyond normal inspection handling.