Description
A flexible link for your pond equipment
Plan a new connection or replace a section with 25mm black corrugated PVC hose.
The nominal 1-inch bore suits appropriately sized hosetails, while the flexible ribbed wall follows broad bends around the installation.
Choose from seven lengths between 1m and 30m. Plain hose supplied; fittings are separate.
Choose the connection first
A little planning makes the hose easier to fit and maintain.
Match the hose bore
This is 25mm internal-diameter hose. Use a hosetail intended for that bore and check the securing method. A BSP thread is a different measurement, so a threaded pump outlet may need an adapter.
Follow the route
Measure between the fittings along the path the hose will take. Leave space for broad curves, avoid pulling the hose tight and allow for the sections that will sit on the hosetails.
Pick your length
Select 1m, 2m, 3m, 4m, 5m, 10m or 30m in the Length dropdown. The hose can be cut to suit the run. Check the route and fitting allowance before making the final cut.
Ribbed outside, shallow ridges inside
The corrugated PVC wall gives this hose its familiar flexible form. Inside, it has shallow, smoothed ridges; it is not a completely flat-walled tube.
You may see this type described as smooth-bore pond hose. That term describes the hose style rather than promising a perfectly flat interior. Check the bore and construction when matching a replacement.
The black finish sits discreetly around pond equipment, plants and edging. Support the run and keep bends gradual, especially where the hose leaves a fitting.
Finish the run so you can inspect it
Fittings and clips are separate from the hose.
Use suitable hosetails
Choose connections for 25mm-bore flexible hose and follow their fitting instructions. Corrugations do not create a seal on their own: the hosetail and securing method must suit the hose.
Check with water
Inspect the assembled joints before covering or concealing the run. Check the operating requirements of your pump or filter, rather than assuming any hose will suit every outlet or system.
Leave access
Keep connections accessible for maintenance. A joint that can be reached is easier to inspect when cleaning a filter, moving equipment or checking the system after a period out of use.
Before you order the 25mm hose
Will this fit a 1-inch threaded outlet?
The hose is nominally 25mm, or 1-inch, on the inside. It is intended to fit a suitable hosetail, not to screw directly onto a threaded outlet. BSP thread sizes describe a different connection. Check the thread and hose-tail sides of any adapter separately, together with the fitting and securing instructions for your equipment.
Can I use it between a pond pump and filter?
This hose is intended for suitable pond pump, filter and water-feature connections. Check that the equipment calls for a 25mm-bore flexible hose and that the hosetails and operating requirements are compatible. Plan a supported route with broad bends, then check the joints with water before concealing them. A pump or filter is not included.
Why is it called smooth bore if it has ridges?
“Smooth bore” is the trade description used for this style of corrugated pond hose. It still has shallow, smoothed ridges inside rather than a completely flat wall. The outside is visibly ribbed too. This distinction is useful when matching an existing hose or checking what your equipment requires; the name alone should not be taken to mean a flat interior.
What length and accessories will I receive?
You receive the length selected in the dropdown: 1m, 2m, 3m, 4m, 5m, 10m or 30m. Hose clips, connectors, pumps and filters are separate. The coil shown in photographs illustrates the hose and does not show the supplied quantity for every option. Measure the routed distance and include the hose that will seat on each fitting before choosing or cutting a length.
Product information & technical details
| SKU | KOI25B001 |
|---|---|
| Product type | |
| Internal diameter | 25mm (1") |
| Colour | Black |
| Material | Plastic |
| Hose material | Flexible PVC |
|---|---|
| Wall construction | Corrugated outside; shallow, smoothed internal ridges |
| Typical applications | Suitable pond pump and filter connections, water features and water-management runs |
| 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.