
Description
A threaded branch
Connect a compatible riser or female-threaded component at right angles to a 19mm LDPE supply run. The two barbed ends keep the line connected on either side of the take-off.
The Antelco 45215 combines a 19mm tube connection at each end with one ¾-inch BSP male branch. Choose the mating component to suit the branch’s thread and your irrigation layout.
One tee supplied. Pipe, clips, riser and socket shown in the installation are separate items.


Two connection types in one tee
The barbed line connections go inside matching nominal 19mm-bore LDPE tube. LDPE means low-density polyethylene. Check the bore and tubing specification, rather than matching an outside-diameter pipe label.
The ¾-inch BSP male branch has an external thread and needs a compatible female-threaded component. BSP is a nominal thread designation, not a 19mm measured thread diameter. Use the BSP explanation in the technical information below if you are comparing fittings.
UV-stabilised polypropylene suits low-pressure outdoor irrigation. The fitting’s operating limit is 300kPa (3bar); it provides the junction, while suitable separate components provide pressure regulation or branch control.
Plan the branch and support the joint
Match both interfaces
Check the tube’s nominal 19mm internal diameter and the branch component’s ¾-inch BSP female connection. Allow space for the riser, valve or adapter without twisting the pipe run.
Assemble without strain
Isolate the supply and release pressure. Prepare the tube as directed, seat it fully on both tails and use compatible retention where required. Follow the mating component’s thread-sealing and tightening instructions.
Support the threaded branch
Support attached risers or heavier components so their weight does not load the plastic tee. Restore water gradually within the complete system’s limits and inspect both tube joints and the threaded connection.
Choosing the threaded connection
How many connections does this tee have?
Three: two opposing 19mm barbed tube tails and one right-angle ¾-inch BSP male threaded branch. It is a T fitting, not a Y splitter or a four-port connector.
Are the 19mm hose size and ¾-inch BSP thread the same measurement?
No. The tube size describes the nominal internal bore of matching LDPE pipe. The BSP size identifies the threaded connection. Confirm both independently; a female hose connector must have the correct BSP thread to fit the branch.
Can the tee turn off or balance the branch?
No. It has no lever, regulating mechanism or independent flow control. Use a suitable separate valve if you need to isolate or adjust a branch, and ensure every component suits the system pressure.
Are the riser, socket and clips included?
No. One Antelco 45215 tee is supplied. The installation illustrates a female-threaded socket and riser on the branch, with separately retained LDPE pipe on the main line. Those accessories are sold separately.
Product information & technical details
| SKU | A45215-TEE19B-34BSPM001 |
|---|---|
| Product type | |
| BSP thread size | 3/4" |
| Thread gender | Male |
| Barb size | 19mm (3/4") |
| Colour | Black |
| Material | Plastic |
| Manufacturer / model | Antelco 45215 |
|---|---|
| Port arrangement | Two opposing barbed tails; one ¾-inch BSP male branch |
| Tube type | Suitable 19mm internal-diameter LDPE irrigation tube |
| Material specification | UV-stabilised polypropylene |
| Maximum operating pressure | 300kPa (3bar); observe the complete system’s limits |
| Supplied quantity | One tee; pipe, clips and threaded accessories sold separately |
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.