The Fits Kohler Hinge Flapper is designed to fit Kohler Hinge-Style parts 84995 and 1000490. The exclusive longest lasting red rubber resists chlorine, bacteria, city water treatment, hard water, and well water. The Hinge Flapper works with the following Kohler models: Ankara (14230), Fables and Flowers (14224), Laureate (14291), Prairie Flowers (14290-WF), San Raphael (3466, 3467, 3384), Revival (3360, 3612), Rialto (3386) and Rosario (3434). Flapper not compatible with 2-piece toilets. Made of flexible rubber for a tight seal and easy to install.