The Korky ultra water saver flapper is the universal 2 in flapper|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, 1.6, 3.5 and 5 gal per flush (gpf)|The exclusive longest lasting red rubber resists chlorine, bacteria, city water treatment, hard water, and well water|Recommended by the Clorox help line|Made of flexible rubber for a tight seal and easy to install|Fits 2 in flush valve opening