ALFI Black 24" Undermount Single Bowl Granite Composite Kitchen Sink – The Sink Boutique
32” Granite Composite Workstation Kitchen Sink Undermount Single Bowl with WorkFlow™ Ledge and Accessories in Dark Grey in Dark Grey 75B933-33S-DG | Delta Faucet
Ruvati 32 x 19 inch epiGranite Undermount Granite Composite Single Bowl Kitchen Sink - Urban Gray - RVG2033GR - Ruvati USA
KOHLER Undermount 33.5-in x 18.3125-in Matte Grey Composite Double Offset Bowl Kitchen Sink in the Kitchen Sinks department at Lowes.com
STYLISH 32 x 18 inch Workstation Dual Mount Granite Composite Single Bowl Reversible Kitchen Sink with Regular Strainer, Colander, Drying Rack and Cutting Board (Grey) S-832WL - Amazon.com