3/8 X 5/16 Reducing Compression UnionThe 3 8" x 5 16" Reducing Compression Union is a plumbing fitting designed to connect two pipes of different sizes3 8" and 5 16"in a straight line. It features compression fittings on both ends, providing a secure and leak free seal. This union allows for an easy transition between the two pipe sizes and is commonly used in residential and commercial plumbing systems where size reduction and a reliable connection are required. Specification Details