Stainless Steel 304/304L Pipe Fitting, Eccentric Reducer Coupling, Butt-Weld, Schedule 10, 6" X 4" Pipe Size Reducing coupling for connecting and extending two eccentric pipes of different sizes Butt-weld, beveled openings for welding pipes together Welded connections to ensure tight seals and reduce the possibility of leakage Made of stainless steel 304/304L for strength and ease in welding Lower carbon content to ensure greater resistance to corrosion