KRAUS KCU-241 Rectangular 21 inch Undermount White Porcelain Ceramic Bathroom Sink with Overflow. The Elavo Series offers a fresh look for classic white ceramic. This elegant vessel sink has a streamlined shape that makes the bathroom counter easier to clean and de-clutter. The durable non-porous finish is scratch-resistant and easy to clean. Collection: Available Options: Specifications and Warranty: NOTE: Each sink may have a 3% dimension tolerance. Please measure the sink prior to installation.