Description
Choose your connection
A brass tank adapter and inline valve, with an outlet to suit the way you connect your hose.
Use the short lever to control water at the tank. Choose the adapter size and outlet separately.
One selected kit, including PTFE tape.
The ¾-inch adapter kits
The smaller brass tank fitting has a ¾-inch BSP male external thread and a ½-inch BSP female internal thread. In these kits, the valve’s ¾-inch BSP female collar fits over the adapter’s external thread.
That leaves a ¾-inch BSP male outlet on the valve. Select Valve Only to keep that thread exposed, or choose the quick connector, ½-inch barb, ¾-inch barb or GEKA outlet.
The actual Valve Only kit is pictured here. Every kit includes the adapter with back nut and two washers, the valve and one PTFE roll. Other outlet fittings are supplied only with the corresponding option.
The 1-inch adapter kits
The larger brass tank fitting has a 1-inch BSP male external thread and a ¾-inch BSP female internal thread. Here, the same valve is fitted the other way round: its ¾-inch BSP male end screws into the adapter.
The exposed valve outlet is therefore ¾-inch BSP female before an outlet fitting is added. Choose Valve Only, a quick connector, a ½-inch or ¾-inch barb, GEKA, or the additional 1-inch barb option.
The adapter size refers to its male external thread. It does not mean that every connection in the kit, or the hose you attach, is 1 inch.
Choose the hose end
Each kit supplies one selected outlet arrangement. Match it to your hose system.
Quick Connector
A male quick-connect nipple for a matching female connector on your hose. The hose-side receiving connector is separate. Close the valve before releasing the hose; this outlet is not a bare-hose barb.
Barbed hosetail
Match the hose’s inside diameter: ½-inch is the nominal 13mm barb, ¾-inch is 19mm, and 1-inch is 25mm. The 25mm option is available only with the larger adapter. Use suitable hose retention; hose and clips are separate.
GEKA-type coupling
A brass claw-style outlet for a matching GEKA-type hose coupling. It is a different connection from a click-on garden-hose nipple. Check the mating coupling and seal; the hose-side half is not included.
Questions about the adapter and valve kits
What does Valve Only leave me with?
You still receive the brass tank adapter, its back nut and two washers, the valve and PTFE tape, but no extra hose outlet fitting. With the ¾-inch adapter, the exposed valve outlet is ¾-inch BSP male. With the 1-inch adapter, it is ¾-inch BSP female. Choose a compatible accessory for that thread.
Is the valve ½ inch in the smaller kit?
No. Both adapter sizes use the same ¾-inch BSP male/female valve. The smaller adapter has a ½-inch female internal thread, but the valve fits over its ¾-inch male external thread. With the larger adapter, the valve’s male end instead screws into the adapter’s ¾-inch female thread.
Are the barb sizes inside or outside hose diameters?
Choose the barbed hosetail by the hose’s inside diameter: nominal ½-inch / 13mm, ¾-inch / 19mm or 1-inch / 25mm. The hose’s outside diameter depends on its wall thickness. The 25mm barb is offered only with the 1-inch adapter; the other two barb sizes are offered with both adapters.
Does the kit include every pictured connector?
No. You receive one kit in the adapter size and outlet option selected. Every kit includes the adapter with back nut and two washers, valve and one PTFE roll. Quick Connector, Barb and GEKA options add the selected outlet fitting; Valve Only does not. Tank, hose, clips, mating hose couplings and drilling tools are separate.
Product information & technical details
| SKU | WB12-BRASS-KIT-018+ |
|---|---|
| Product type | |
| BSP thread size | 1/2", 3/4", 1" |
| Thread gender | Male, Female |
| Barb size | 13mm (1/2"), 19mm (3/4"), 25mm (1") |
| Kit parts | Brass Tank Adapter, Brass-bodied Inline Valve, PTFE Tape, Selected Outlet Fitting (except Valve Only) |
| Colour | Brass |
| Material | Brass |
|---|---|
| ¾-inch adapter / Valve Only | ¾-inch BSP male / ½-inch BSP female adapter; valve leaves a ¾-inch BSP male outlet |
| 1-inch adapter / Valve Only | 1-inch BSP male / ¾-inch BSP female adapter; valve leaves a ¾-inch BSP female outlet |
| Valve threads and control | ¾-inch BSP male and female; brass body with black lever and black female connection collar |
| Outlets with ¾-inch adapter | Valve Only, Quick Connector, 13mm (½-inch) Barb, 19mm (¾-inch) Barb, GEKA |
| Outlets with 1-inch adapter | Valve Only, Quick Connector, 13mm (½-inch) Barb, 19mm (¾-inch) Barb, 25mm (1-inch) Barb, GEKA |
| Included in each selected kit | 1 brass tank adapter with back nut and two washers, 1 valve, 1 PTFE roll; selected outlet fitting if applicable |
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.