WRAS approved end feed coupler for copper pipework. Suitable for hot and cold water systems in domestic and commercial plumbing. Available in sizes from 8mm to 35mm, sold individually or in bulk boxes.
Available options and pricing for End Feed Coupler, with quantity selectors and a running total
Size
QTY
SKU
Price
QTY
Total
8mm
1
30400001
£0.10£0.12
—
10mm
1
30400005
£0.10£0.12
—
15mm
25
30400013
£3.20£3.84
—
22mm
25
30400017
£7.20£8.64
—
28mm
10
30400021
£5.12£6.14
—
35mm
1
30400025
£0.88£1.06
—
The end feed coupler is one of those fittings that every plumber has on the van, and for good reason. It does one job, it does it reliably, and when you solder it correctly you get a joint that will outlast most of the building around it. These are WRAS approved, which means they meet the Water Regulations Advisory Scheme requirements for use in drinking water systems — not just a sticker, an actual certification that matters when you are working on potable water installations.
Available in sizes from 8mm up to 35mm, these end feed couplers cover the vast majority of domestic and light commercial copper pipework work. Whether you are extending a run, joining two lengths of pipe, or repairing a section after cutting out a failed joint, this is the fitting you reach for. The end feed design means you clean, flux, push, and solder — straightforward, the way it should be.
Why WRAS Approval Matters on End Feed Couplers
WRAS approval is not just a box-ticking exercise. It confirms the fitting will not leach harmful materials into the water supply and that it meets the mechanical performance standards required for pressurised systems. If you are working on any installation connected to the mains water supply, particularly in commercial or rental properties, using approved fittings keeps you compliant and your paperwork clean. These couplers carry that approval across the full size range.
Buying in bulk boxes makes sense on any job where you are running pipework from scratch. The unit price drops considerably when you order in quantity, and having a box of 25 on site means you are not running to the merchant for a handful of fittings at the worst possible moment.
Pro Tip: Always clean back to bare copper on both pipe ends before fluxing, even on new pipe straight from the roll — oxidation forms quickly and a thin layer of it is enough to give you a dry joint.
End feed couplers are used wherever two lengths of copper pipe need joining in a straight run. That covers new installations, extensions to existing systems, and repair work where a section of pipe has been cut out. They are common on hot and cold water supplies, central heating flow and return pipework, and bathroom and kitchen installations across both domestic and commercial properties.
Installers working on boiler upgrades, bathroom refits, kitchen plumbing, and underfloor heating manifold connections all reach for end feed couplers as a standard part of the job. They are equally at home in ceiling voids, service ducts, and plant rooms where a clean soldered joint is the preferred method over push-fit.
Best For
Joining straight runs of copper pipe
Hot and cold water supply systems
Central heating pipework
Domestic and light commercial plumbing
Repair and extension work
Available In
8mm
10mm
15mm
22mm
28mm
35mm
Key Features
WRAS approved for potable water use
End feed solder design
Copper construction
Compatible with standard copper tube
Available individually or in bulk boxes of 10 or 25
Not suitable for: Not suitable for use with plastic or plastic-lined pipe without an appropriate adapter. End feed fittings require a blow torch and soldering skills — not suitable for push-fit or compression applications.
Clean the outside of both pipe ends with wire wool or emery cloth until the copper is bright. Apply flux to the cleaned pipe ends and the inside of the coupler, then push the fitting fully onto the pipe. Apply heat evenly around the fitting with a blow torch until the flux begins to bubble, then touch solder to the mouth of the fitting and allow it to draw in by capillary action. Remove heat and leave the joint undisturbed until it has cooled. Wipe away excess flux residue once cool to prevent long-term corrosion.
Cut pipe ends cleanly and deburr the inside edge with a pipe reamer or file
Clean both pipe ends and the inside of the coupler sockets with wire wool or emery cloth until bright copper is visible
Apply a thin, even coat of flux to the cleaned pipe ends and into the coupler sockets
Push the coupler fully onto both pipe ends, ensuring it is seated to the centre stop
Apply heat evenly around the body of the fitting using a blow torch, keeping the flame moving
Touch solder to the joint mouth when the flux starts to bubble and the fitting reaches soldering temperature
Allow the solder to draw into the fitting by capillary action until a ring of solder is visible around the joint mouth
Remove the heat and allow the joint to cool naturally without disturbing it
Wipe off any remaining flux with a damp cloth once the joint has cooled
Are these end feed couplers suitable for drinking water systems?
Yes. These fittings are WRAS approved, which confirms they are suitable for use on potable water systems including mains cold water and hot water supply. The approval covers the full size range from 8mm to 35mm.
What solder should I use with end feed copper fittings?
Use a lead-free solder for any pipework carrying drinking water — this is a legal requirement in the UK. A standard lead-free plumbing solder wire is the right choice for these fittings. For heating systems only, standard plumbing solder is fine, but lead-free is still recommended as good practice.
Can I buy these in bulk?
Yes. These end feed couplers are available individually, in boxes of 10, or in boxes of 25. Buying in a box of 25 works out significantly cheaper per fitting and is the sensible option if you are running a full pipework installation or want to keep stock on the van.
Manufactured from copper to BS EN 1254-1 standards, these end feed couplers use capillary action to draw solder into the joint when heat is applied. The end feed design requires solder to be fed manually at the joint mouth, giving the installer control over solder quantity. WRAS approval confirms compliance with UK water regulations for fittings used in contact with potable water.
Approval
WRAS Approved
Material
Copper
Connection Type
End Feed (Solder)
Available Sizes
8mm, 10mm, 15mm, 22mm, 28mm, 35mm
Standard
BS EN 1254-1
Application
Hot and cold water, central heating
Pack Options
1, 10, 25
Size
10mm, 15mm, 22mm, 28mm, 35mm, 8mm
Box Quantity
1, 10, 25
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