Features; * Improves flushing power * Designed to fit most two piece toilets with a 2-inch flush valve opening * Includes: 3-inch oversized flapper, gasket and tank to bowl bolts, no-cut overflow tube (adjusts from 8.5 in. - 13 in.) What"s In The Box: * Plumb Pak K835-9 Flushall 3-Inch Adjustable Flush Valve Flapper