https://www.fluidmaster.com/shop/product/523a-009-t4-universal-2-3-super-flapper/ * A truly universal 2 in. and 3 in. toilet flapper * Super flapper converts easily for use w/2 in. or 3 in. flappers * Follow easy step by step instructions for sizing, install and use #fluidmaster #toiletrepair #plumbing