TOTO MS854114SL#11 Ultramax ADA One Piece Toilet, Colonial White G-Max flushing system: Quiet, powerful, commercial grade flushing performance Fast Flush: Wide 3-Inch flush valve is 125 percent larger than conventional 2-Inch flush valves Wider, 2-1/8-Inch computer designed, fully glazed trapway Large water surface Length 28-Inch, Bowl Rim Height 16-1/2-Inch, Seat Height 15-Inch, Tank Height 27-1/2-Inch, Tank Width 16-1/2-Inch