The Korky Ultra 2X Flapper is the longest lasting， most universal standard 2 inch flapper available. The proprietary Chlorazone II rubber formulation lasts 2 times longer than other flappers and is backed by a 10 year warranty to hold up in the harshest environments. Korky red rubber resists chlorine， bacteria， city water treatment， hard water， and well water. The flapper adjusts to match original toilet settings and eliminates water waste by decreasing the amount of water flushed. Ideal for all standard 2 inch toilets， including: 1.28， 1.6， 3.5 and 5 gallons per flush gpf. The adjustable flapper has multiple settings to ensure it fits popular standard 2 inch toilet models: American Standard Cadet 4029， 4078， 4083， 4053， 4650， Monarch 4003， Mainstream 4061， Evolution 2 Flowise 4061， Kohler Wellworth K-4620， K-4519， TOTO 706， and many more. Made of flexible rubber for a tight seal and easy to install， the 2017 includes: 2017BP Adjustable Flapper， Instructions and Stainless Steel Chain

Proprietary Chlorazone II rubber is 2 times stronger than other Toilet Flappers

Red rubber resists chlorine， bacteria， city water treatment， hard water， and well water

The most universal standard 2 inch Toilet Flapper

Adjusts to fit all tank sizes: 1.28， 1.6， 3.5 and 5 Gal. per flush toilets

The preferred flapper brand of plumbing pros since 1954

Fits most standard 2 in. flush valves， including American Standard， Kohler， TOTO and more

Adjusts to match original toilet settings and eliminates water waste by decreasing the amount of water flushed

10-year warranty

Includes: (1) adjustable flapper， (1) stainless steel chain and (1) instructions