Blanco 440203 Diamond Silgranit II Bar Sink (Metallic Gray). This single-bowl sink is perfect as a bar or prep sink, and features an 8" bowl depth for even more room. It features a heat-resistance of up to 536-degrees, and is constructed of 80-percent solid granite. Its unsurpassed cleanability and scratch/stain/acid/alkali resistance will keep this sink beautiful for years to come. This model comes in a classic, Metalic Gray finish.