The 1" × 28mm End Feed Imperial/Metric Adaptor joins imperial 1" copper tube to a 28mm metric fitting or run with a soldered capillary joint. It ties old imperial pipework into a modern metric system in one fitting — the sizes are close but not identical, so the adaptor makes a clean, sound joint. Suitable for hot and cold water and central heating. Manufactured from copper to BS EN 1254-1 and fits copper tube to BS EN 1057.

Also known as: imperial to metric adaptor, imperial adaptor, imperial coupler, imp-met adaptor, conversion coupler, imperial metric reducer, 1 inch to 28mm adaptor, old to new copper adaptor.

• Manufactured to BS EN 1254-1 for capillary (solder) fittings
• Adapts imperial 1" tube to 28mm metric
• Fits copper tube to BS EN 1057 (metric side)
• WRAS approved
• Solder and flux required — not supplied
• Sold individually — buy exactly what the job needs
• Suitable for hot and cold water and heating services

End feed means a capillary joint: clean the tube and fitting, apply flux, heat evenly and feed lead-free solder to the mouth of the fitting until a ring forms. See our guide: How to solder end feed fittings.

Also in this range: straight couplers, reducing couplers and the full end feed range. Ordering for a whole job? Use the bulk fittings matrix.