Duravit. Cassia built-in kitchen sinks are made with the company's DuraCeram ceramic, which is engineered for high impact resistance and optimum robustness. The sinks combine a drainboard surface with one, one-and-a-half, or two bowls; the gently inclined drainboard is smooth for food prep. Other features of the reversible sinks include a raised-height edge to prevent splashing and a narrow overflow strip on the one-and-a-half- and two-bowl models. The 1 1/5-inch-thick worktop permits dishwasher installation underneath. www.duravit.com.