Volume 141 Catalog Page: 636The Genuine TOTO 3 Inch Flapper by Korky is fully adjustable to fit all 3 inch TOTO toilet modelsThe adjustable flapper has 8 settings to ensure it fits all TOTO modelsReplaces the following TOTO flappers: THU138S, THU175S, THU331S, THU140S, THU299S, THU253S, THU277S, THU347S,THU275S, THU332S, and THU369S2023BP