The Fits Kohler and Eljer Tank Ball Flapper is designed to fit Kohler part 88921 and Eljer Touch Flush assemblies. The exclusive longest lasting red rubber resists chlorine, bacteria, city water treatment, hard water, and well water. The Fits Kohler and Eljer Tank Ball fits the following Kohler models: Champlain (3390), Palarre (3383), Pompton (3400) and Rochelle (3385). In addition to the Kohler models, the tank ball also fits toilets with brass flush valves and Eljer toilets with Touch Flush Assembly. Easy to install, the 425 includes: (1) Tank Ball