Plasson Mine Spec Metric Reducing Coupling, 63mm, PN16 This reducing coupling steps down from 63mm mine spec pipe to a smaller metric size. It's built for mine safe water lines and other rural pipework needing a sturdy, sealed joint between different pipe sizes. The coupling suits 63mm PE pipe reducing down to 32mm, 40mm or 50mm. It gives a secure, leak-free connection where pipe diameter changes along a mine spec line. Features Reduces 63mm mine spec pipe to 32mm, 40mm or 50mm Rated to PN16 for dependable pressure handling Compression joint design needs no special tools to fit Corrosion resistant and built for tough outdoor conditions Suits mine safe water and rural pipe networks A solid choice for stepping down pipe size on mine spec water lines.