TOTO SW563T694-11 Washlet S400 Round Front Toilet Seat for Ultimate Toilets with Auto Flush System, Colonial White Auto Flush activated by sensors or the simple touch of a button Automatic air purifier Convenient wireless Remote Control with large LCD panel SoftClose anti-bacterial seat Length 19-7/8-Inch, Width 15-3/4-Inch, Height 5-1/8-Inch