Stainless Steel 316/316L Pipe Fitting, Concentric Reducing Coupling, Butt-Weld, Schedule 40, 1" x 1/2" Reducing coupling for connecting and extending two concentric pipes of different sizes Butt-weld, beveled openings for welding pipes together Welded connections ensure tight seals and reduce the possibility of leakage Made of stainless steel 316/316L for strength and greater ease in welding Lower carbon content to ensure greater resistance to corrosion