The Korky 2 In. EasyFix Flush Valve Repair Kit is designed to repair corrosion or deposits on plastic and brass flush valve seats. The kit includes an Adjustable Ultra Water Saver Flapper, a plastic flush valve seat, and silicone sealant to repair corroded flush valve seats without removing the toilet tank. The engineered materials resist chlorine, bacteria, city water treatment, hard water, and well water and seals within 15 minutes. Easy to install, the 2003MP includes: (1) 100BP Adjustable Flapper, (1) Stainless Steel Chain, (1) Plastic Flush Valve Seat and (1) Tube of Silicone Sealant.