KOHLER K-5924-5U-96 Lakefield Undercounter Sink with Installation Kit, Biscuit A long-time favorite updated to include a deeper disposal basin and more overall basin area Kohler Cast Iron Exterior dimensions: 33-inchL by 22-inchW Interior dimensions: 19-inchL by 17-inchW Basin depths: L 6-inch, R 9-1/2-inch