Two Inch flapper replacement compatible with American Standard 7381129-200.0070A toilet flapper, and it perfectly replaces the original flapper, right down to the angle in the hook chain Our toilet flapper has a hidden benefit of making your toilet a dual flush without all the extra parts or tricks from an actual dual flush toilet New flapper material is soft/pliant and easily slips right back on Solved the problem of your toilet running quick and helped your water bill too Install in 5 minutes. Pulled out the old flapper, slid this toilet flapper on - no more leaking 2 Inch flapper replacement compatible with American Standard 7381129-200.0070A toilet flapper, and it perfectly replaces the original flapper, right down to the angle in the hook chain.