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, , 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.