American Standard 16TB..411900.073 Prevoir 41-Inch Stainless Steel Undermount Triple Bowl Kitchen Sink, Radiant Silk Robust 18 gauge, 18-10 stainless steel 9 inch deep double bowls with a 5-1/2 inch deep center bowl Crease lines in bowls suggest a hand fabricated look Optional accessories include stainless steel bottom grids, colander and dish rack 45" cabinet required