Description
Build the outlet around your watering setup
A plastic tank adapter and inline valve, with the outlet connection you need.
Choose a hose barb, micro-tube fitting, MDPE connection or coupling, or leave the valve’s threaded outlet open for your own fitting.
¾-inch BSP tank connection. Standard or Extended reach. One selected kit supplied.
Start with the tank connection
The black plastic adapter has a ¾-inch BSP male tank-side thread and a ¾-inch BSP female connection for the valve. The valve’s male inlet screws into the adapter; these are threaded parts, not push-on joints.
Valve Only, shown here, leaves the valve’s ¾-inch BSP male outlet exposed for a compatible female-threaded fitting. It is an open threaded outlet, not a blanking cap. Most other options add a fitting to this thread; Male Quick Connector uses the valve version with a male click-on outlet.
Each selected kit includes a back nut and two washers for the adapter. PTFE tape is separate, as are hoses, pipe, hose clips and matching coupling halves.
Find the right outlet
Match your existing connection, then check which dimension its size describes.
Valve Only
A bare ¾-inch BSP male outlet for your own compatible female-threaded fitting. Choose it when you already have the correct connection; no additional outlet fitting is supplied.
½-inch or ¾-inch plastic barb
Choose by hose bore. The ½-inch option uses the fitting also called 16mm irrigation: it fits nominal 13mm internal / 16mm external diameter hose. The ¾-inch option is for nominal 19mm internal-diameter hose.
Brass hose barbs
½-inch Brass Barb is for nominal 13mm internal-diameter hose; ¾-inch Brass Barb is for nominal 19mm internal-diameter hose. Check the hose material and a suitable securing method. Hose and clips are separate.
4mm micro tube
The 4mm Micro Barb option provides the small outlet for compatible micro-irrigation tube. It uses the connector also listed as 4.5mm. Check the tube’s fit over the barb, rather than treating every millimetre label as the same measurement.
20mm MDPE Joiner
A compression connector for MDPE pipe with a 20mm outside diameter. This is a pipe connection, not a 20mm internal-diameter hose barb. Pipe and any installation accessories are separate.
Quick connectors or GEKA
Male Quick Connector has a projecting click-on nipple; Female Quick Connector has a blue receiving socket. Each needs the opposite compatible coupling half. GEKA has a claw coupling and needs a matching GEKA-style connection.
Leave room for the complete connection
The Extended adapter brings the valve further from the wall than the Standard connector. It measures 50mm overall, with about 40mm usable projection. These are dimensions of the connector, not of the complete valve assembly.
The Extended / 20mm MDPE Joiner selection is pictured here. Allow space for the pipe connection and access to the rotary control. For hoses, leave a gentle bend and room to connect or release any coupling.
Match any existing tank thread by size and gender. For a new opening, check wall suitability, washer seating and back-nut access. Support connected pipework so it does not pull against the plastic mounting, and test the tank seal and all joints with water after installation.
Questions about these adapter and valve kits
Does one kit include all the outlet fittings?
No. The outlet choices are separate variants. You receive one tank adapter in the selected Standard or Extended style, one valve, one back nut and two washers. The chosen outlet fitting is supplied where applicable; Valve Only has no additional outlet fitting. PTFE tape, hose, pipe, clips, tools and any matching coupling half are separate.
Why is the ½-inch plastic barb also called 16mm irrigation?
The names refer to different dimensions of the hose. In this irrigation fitting, 16mm describes the hose’s outside diameter; the matching bore is nominally 13mm, or ½ inch. The barb fits inside that bore. It is commonly described as 13mm/16mm hose to state internal and external diameters, so do not select 16mm internal-diameter hose just because the fitting has a 16mm irrigation label.
Is 20mm MDPE the same as a ¾-inch hose connection?
No. The 20mm MDPE Joiner is a compression fitting for pipe with a 20mm outside diameter. The ¾-inch hose-barb options fit a nominal 19mm internal hose bore. They use different connection systems and measure different parts of the pipe or hose. Choose the option for the actual material and dimensions of your existing setup.
Which quick-connector option should I choose?
Check the coupling already fitted to your hose. Male Quick Connector supplies a projecting nipple, which needs a compatible female receiving connector. Female Quick Connector supplies the blue receiving socket, which needs a compatible male nipple. Neither is a bare-hose barb, and the opposite coupling half is separate. Close the valve before disconnecting a hose.
Product information & technical details
| SKU | WB34MF-KIT011 |
|---|---|
| Product type | |
| BSP thread size | 3/4" |
| Thread gender | Male, Female |
| Barb size | 4mm, 13mm (1/2"), 19mm (3/4") |
| MDPE size | 20mm |
| Kit parts | Selected Plastic Tank Adapter, Plastic Inline Valve, Selected Outlet Fitting (where chosen), Back Nut, 2 Washers |
| Colour | Black |
| Material | Plastic |
|---|---|
| Tank adapter threads | ¾-inch BSP male tank-side thread / ¾-inch BSP female valve connection |
| Valve connection | ¾-inch BSP male inlet; Valve Only has ¾-inch BSP male outlet; Male Quick Connector has male click-on outlet |
| Extended connector dimensions | 50mm overall connector length; about 40mm usable projection |
| Mounting parts | 1 back nut and 2 washers with the selected plastic tank adapter |
| Supply quantity | 1 selected adapter-and-valve kit; outlet fitting included only for the chosen outlet option |
| PTFE tape | Not included; supplied 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.