SOTTO 32 Undermount Fireclay 32" Single Bowl Kitchen Sink - Matte Dark Gray
Karran QU-722 Undermount Quartz Composite 33 in. Single Bowl Kitchen Sink in Grey - Amazon.com
Karran Quartz Undermount 32-in x 19.5-in Grey Quartz Double Equal Bowl Kitchen Sink in the Kitchen Sinks department at Lowes.com
New Waterfall Kitchen Bar Sink, 304 Stainless Steel, with Cup Washer, Drop-in Or Undermount Installation (Color : Black-Grey, Size : 80x45x20cm) - Amazon.com