The Korky Tank-to-Bowl Gasket Kit is a 3-inch red rubber toilet gasket repair kit designed for American Standard toilets with a flapper flushing technology. This kit includes a flush valve and is suitable for standard bowl shape toilets, providing a single flush with 1-1.28 gallons per flush. The antimicrobial features of this product make it ideal for bathroom use, ensuring a hygienic and functional toilet repair solution.