Korky Premium Universal Toilet Flapper, 3-Pack is the selling flapper in the United States, known for its durability and reliability. This premium flapper features the exclusive longest lasting red rubber that effectively resists chlorine, bacteria, city water treatment chemicals, hard water, and well water, making it highly by the Clorox help line. Crafted from flexible rubber, it ensures a tight seal and is easy to install, providing a dependable solution for your toilet tank needs. The universal size fits most toilets, and the package includes three flappers for added convenience and value. Model Number: 2001TP