KOHLER K-2979-4-0 Tresham One-Piece Surface and Integrated Bathroom Sink with 4-Inch Centerset Faucet Drilling, White 25.4375" x 19-1/16" Integrated basin and countertop fits the Tresham K-2604 vanity and other industry standard 24" x 18" vanities Generous deck space Vitreous china construction Overflow drain