Blanco 441219 Diamond Silgranit II Bar Sink, Biscotti Flat deck is ideal for both drop-in and undercount installations 80% solid granite Silgranit material features the touch and feel of natural stone Required outside cabinet: 15" Heat-resistant up to 536 degree and highly-resistant to scratching, staining and all household acids and alkali solutions Limited lifetime warranty 80-percent rock hard granite Bowl depth 8-Inch Outside dimensions 15 inches by 15 inches Biscotti Drain width 3-1/2 inches