18 GAUGE STAINLESS STEEL 16.5IN X 20.5IN X 7.875IN SINGLE BOWL UNDERMOUNT KITCHEN SINK 1-BOWL TYPE; 304 STAINLESS STEEL MATERIAL; 16-1/2 INCH; 20-1/2 INCH; 7-7/8 INCH; RECTANGLE IN RECTANGLE SHAPE; LUSTROUS SATIN COLOR/FINISH; 18 GAUGE MATERIAL THICKNESS; ASME A112.19.3/CSA B45.4, CUPC APPLICABLE STANDARD; BRACKET EXCLUSIONS