AMERICAN STANDARD Three Inch Flush Valve Seat Disc, Fits Lexington and Heritage, by NuFlush

3 inch Flush Valve Seat Disc.; Replacement part Seat Disc, fits American Standard Heritage, one Piece Toilet #2031.016; and American Standard Lexington Round Front, and Elongated Toilets; #2007.012 and 2006.014; One Piece Toilets.; Black Rubber with snap in attachment.; Strong enough to Retain Shape; Flexible enough to Provide Excellent Seal.;AMERICAN STANDARD Three Inch Flush Valve Seat Disc, Fits Lexington and Heritage, by NuFlush