Description
38mm hose for a flexible pond connection
Use black corrugated PVC hose for suitable pond equipment that calls for a nominal 38mm bore.
Commonly labelled 1½-inch, this is the 38mm range. Check the metric size of your hose and hosetails before selecting a replacement.
Seven lengths from 1m to 30m. Hose supplied with plain ends; fittings are separate.
Choose by bore, then by length
Check the connection before measuring the final hose route.
Confirm 38mm
Match the internal bore and hose type to your equipment. The 38mm and 40mm ranges are listed separately, even though both may be called 1½-inch. Use the metric size rather than assuming they are interchangeable.
Check the hosetail
A hosetail sits inside the hose; a BSP thread is a different connection. Check the fitting’s intended hose bore, profile and securing method. A threaded pump outlet may need an appropriate adapter.
Follow the route
Measure along the path the hose will take, allowing for gradual curves and fitting engagement. Choose 1m, 2m, 3m, 4m, 5m, 10m or 30m above. Check the route and fit before making a final cut.
See where the bore is measured
The reference photograph shows the inside of the 38mm hose. Measuring across the outside ribs gives a different, larger dimension.
The PVC wall is corrugated outside and has shallow, smoothed internal ridges. “Smooth bore” is a common trade description for this style, not a claim that the inner wall is completely flat.
The flexible black wall follows broad curves and sits discreetly around a garden pond. Support the run and leave space where the hose exits a fitting.
Make the run easy to inspect
Hose clips, fittings and pond equipment are sold separately.
Seat and secure
Use hosetails intended for the hose’s bore and construction. Follow their fitting instructions and choose the appropriate securing method. The outside ribs do not create a seal on their own.
Support broad bends
Avoid pulling the hose tight, trapping it under edging or folding it sharply beside a connection. Keep its weight supported so that it does not strain an outlet or adapter.
Check before concealing
Inspect the assembled joints with water before covering the route. Leave access for maintenance and check that the hose and fittings suit your equipment’s operating requirements.
Questions about the 38mm range
Is 38mm the same as the 40mm hose?
These are separate nominal bore sizes in the range. Both may be described as 1½-inch in product naming, so use the metric internal diameter when matching a hose or hosetail. This listing is for nominal 38mm-bore hose. Check your equipment’s hose specification and the fitting profile rather than choosing solely from the inch label or the outside diameter.
Can it connect directly to a 1½-inch BSP outlet?
No. The hose has plain ends for suitable hosetails; it does not screw onto a thread. A BSP outlet may need an adapter with the correct equipment thread and a hosetail intended for 38mm-bore hose. The thread’s nominal size is different from a hose-bore measurement. Check both connections and the fitting instructions before assembly.
Is the inner wall flat and smooth?
It has shallow, smoothed ridges inside and a corrugated exterior. This type is commonly called smooth-bore pond hose, although its inside is not completely flat. Use the bore and construction details when comparing a replacement with your existing hose. The trade description alone does not establish a flow rate, pressure rating or universal equipment compatibility.
What length and fittings will arrive?
You receive the length selected in the Pipe Length dropdown: 1m, 2m, 3m, 4m, 5m, 10m or 30m. Clips, connectors, pumps and filters are not included. Coil photographs illustrate the hose rather than the quantity supplied for each option. Allow for the routed distance, broad bends and the sections that fit over the hosetails before choosing or cutting a length.
Product information & technical details
| SKU | KOI38B001 |
|---|---|
| Product type | |
| Internal diameter | 38mm (1.5") |
| Colour | Black |
| Material | Plastic |
| Hose material | Flexible PVC |
|---|---|
| Wall construction | Corrugated outside; shallow, smoothed internal ridges |
| Typical applications | Suitable pond pump, filter and water-feature connections |
| Length options | 1m, 2m, 3m, 4m, 5m, 10m or 30m |
| Contents | Selected length of plain-ended hose; clips, fittings, pump and filter not included |
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.