The Korky Ultra Water Saver Flapper is the most universal 2 in. flapper available. The flapper adjusts to match original toilet settings and eliminates water waste by decreasing the amount of water flushed. Ideal for all standard 2 in. toilets, including: 1.28 GPF, 1.6 GPF, 3.5 GPF and 5 GPF. The exclusive longest lasting red rubber resists chlorine, bacteria, city water treatment, hard water and well water. Recommended by the Clorox help line, this Korky flapper is proven longest lasting. The adjustable flapper has multiple settings to ensure it fits popular 2 in. toilet models: American Standard Cadet (4029, 4078, 4083, 4053, 4650), Monarch (4003), Mainstream (4061), Evolution 2 FloWise (4061), KOHLER Wellworth (K-4620), Wellworth (K-4519) and Toto (706). Fits most 2 in. flush valves, including American Standard, KOHLER, TOTO and more Most universal 2 in. flapper Adjusts to fit all tank sizes: 1.28, 1.6, 3.5 and 5 gallon per flush toilets Exclusive longest lasting red rubber resists chlorine Includes: (1) adjustable flapper and (1) stainless steel chain Dimensions Product Depth (in.) 1.25 in Product Height (in.) 4 Product Width (in.) 2 in Details Adjustable Yes Adjustable Canopy Tilt No Canopy Included No Chain Included Yes Color/Finish Family Red Corrosion Resistant Yes Material Rubber Pack Size 1 Plumbing Part Type Toilet Flapper Toilet Replacement Parts Type Toilet Flapper