WRAS approved 28x22mm end feed reduced elbow for copper pipe installations. Changes direction and steps down pipe diameter in a single fitting. Suitable for domestic and commercial plumbing systems where a 90-degree turn and size reduction are needed at the same point.
The end feed reduced elbow 90° in 28x22mm is one of those fittings that earns its place on the van. Instead of fitting a standard elbow and a separate reducer, this one piece does both jobs at once — a 90-degree change of direction combined with a step down from 28mm to 22mm copper pipe. Clean, efficient, and one less joint to sweat in a tight cabinet or airing cupboard.
WRAS approval means this fitting meets the Water Regulations Advisory Scheme requirements for use in contact with potable water. That matters on any domestic or commercial installation where sign-off is required. It is not a number to gloss over — WRAS approval confirms the materials will not contaminate the water supply and the product is fit for use in mains-pressure systems throughout the UK.
Where End Feed Reduced Elbows Are Used in Plumbing
End feed fittings are soldered rather than push-fit, which makes them the go-to for professional plumbers who want a permanent, reliable joint that will not work loose over time. Solder is applied externally to the fitting socket and drawn into the joint by capillary action when heated. It takes a little longer than compression or push-fit, but the result is a neat, low-profile joint that sits tight against walls and inside units.
The 28x22mm size is commonly used on heating flow and return circuits, domestic hot water pipework, and connections between larger distribution runs and smaller branch lines. Anywhere a main 28mm run needs to break off and change direction down to a 22mm branch, this fitting handles it in one go.
Buying in Bulk
These are priced per box of 10, which makes sense given how quickly reduced elbows get used across a heating installation or bathroom fit-out. Having a box on the van means you are not hunting for an end feed reduced elbow 90° at a builder’s merchant on a Thursday afternoon when you are already half-way through a boiler swap. (We have all been there.)
Pro Tip: Always use flux specifically rated for end feed fittings and make sure the pipe end and fitting socket are clean and dry before soldering — any moisture inside the joint will cause the solder to spit and leave voids that can weep under pressure.
End feed reduced elbows are used throughout domestic and light commercial plumbing wherever a pipe run needs to change direction and reduce in diameter at the same point. Typical situations include connecting 28mm central heating flow or return pipework to 22mm branch circuits, routing pipework around obstacles inside stud walls, and fitting out plant rooms or airing cupboards where space is limited and a combined fitting saves room.
Plumbers fitting copper heating systems, hot and cold water services, and pressurised cylinder connections will find regular use for this size. The WRAS approval makes it equally suitable for potable water applications, so it works across both heating and domestic water circuits without needing a separate fitting for each.
Best For
Central heating flow and return pipework
Domestic hot and cold water services
Stepping down from 28mm to 22mm branch circuits
Tight spaces where combined direction change and reduction is needed
Potable water systems requiring WRAS-approved fittings
Compatible With
28mm copper pipe (inlet)
22mm copper pipe (outlet)
End feed solder and flux
Standard copper tube to BS EN 1057
Key Specifications
Size: 28x22mm
Angle: 90 degrees
Type: End feed (solder)
WRAS approved
Suitable for potable water
Box quantity: 10
Not suitable for: Not suitable for use with plastic or multilayer pipe systems without appropriate adaptor fittings. These are end feed fittings requiring soldering and are not designed for push-fit or compression connections.
Clean the outside of each pipe end and the inside of the fitting sockets using wire wool or abrasive cloth until the copper is bright. Apply a thin, even coat of appropriate end feed flux to both the pipe ends and the fitting sockets before assembling the joint.
Push the pipes fully into each socket of the fitting and apply heat evenly around the joint using a blowtorch. When the fitting reaches temperature, apply lead-free solder to the rim of the socket and allow capillary action to draw it into the joint. Remove heat once a ring of solder appears around the socket edge. Wipe away any excess flux after the joint has cooled slightly.
Cut copper pipe to the required lengths using a pipe cutter for a clean, square end
Deburr the pipe ends inside and out to ensure a good fit and prevent solder blockage
Clean the pipe ends and fitting sockets with wire wool until the copper is bright
Apply end feed flux to the pipe ends and inside the fitting sockets
Push the pipes fully home into the fitting sockets and check alignment before heating
Heat the fitting evenly with a blowtorch, moving the flame around the joint
Touch lead-free solder to the socket rim when the fitting reaches soldering temperature and allow it to be drawn in by capillary action
Remove heat once a complete ring of solder appears, and wipe off excess flux before it cools fully
What does WRAS approved mean for this fitting?
WRAS stands for the Water Regulations Advisory Scheme. Approval confirms the fitting has been tested and is safe for use in contact with drinking water in UK plumbing systems. If you are working on mains water pipework or any potable water installation, using WRAS-approved fittings is the correct approach and may be required by building regulations or water company bylaws.
Can I use this fitting on a heating system as well as cold water?
Yes. End feed copper fittings are used across both heating and water services. The WRAS approval specifically covers potable water use, but the fitting is equally suited to central heating circuits. Just make sure you use the correct flux and lead-free solder for any potable water application.
Manufactured from copper to suit standard BS EN 1057 copper tube, this 28x22mm end feed reduced elbow relies on capillary soldering to form a permanent, pressure-rated joint. The end feed design means solder is applied externally at the point of installation rather than being pre-loaded in the fitting. WRAS approval confirms compliance with UK water fittings regulations for use in potable water systems.
Size
28x22mm
Angle
90 degrees
Fitting Type
End feed (capillary solder)
Approval
WRAS Approved
Compatible Pipe Standard
BS EN 1057 copper tube
Box Quantity
10
Application
Potable water and heating systems
Size
28x22mm
Box Quantity
10
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