Description Kohler 1020751 Flush Valve  2-inch Two-piece Toilet Flush Valve Replaces Briggs BA2101KIT-1 For 2-inch Two piece Toilets Has a longer trimmable overflow tube A taller overflow tube means more water and more powerful flushes Comes with all installation hardware Flush Valve Easy Measuring Tips – Video One piece or Two piece which is right for you? Video