Reducing coupling, copper fittings COPPER REDUCER copper fittings (1) 20 years exprience of manufacturing with excellent workmanship and top quality. (2) Strictly confirm with ANSI/ ASME B16.22 or EN 1254-1/ BS864-2 Standards (3) Scrupulous quality control, the inspection of raw materials, semi-unfinished products as well as finished products. (4) Items can be customerized according to different requirements, and moulds cover almost all of the American and European Standards. (5) Specifications: 15x 16x 22x 28x (6) OEM is offered, sizes are available both in metric and inch units.