Whitehaus WHNC3220-BSS Haus Series 31 7/8-Inch Double Bowl Undermount Sink, Brushed Stainless Steel 16 gauge, 304 series stainless steel 18/8 chrome and nickel content Full undercoat under sound deadening pads 1" radius corners Includes mounting hardware and a template 16 gauge, 304 series stainless steel 1" radius corners 18/8 chrome and nickel content Full undercoat under sound deadening pads 3 1/2" rear center drain opening