Whitehaus Collection WHQDB532-BISCUIT 33" Quatro Alcove Reversible Double Bowl Fireclay Sink With 2" Lip On One Side And 2 1/2" Lip On Other Side, Biscuit 3 1/2 inch center drain Sink is finished on all four sides Bowls are equal in size and depth center wall has a slightly scooped shape Drains Rnw35, Rnw50, or WH200 must be used Matching grid: GR532 Sink is finished on all four sides Bowls are equal in size and depth 3 1/2" center drain