Description Crane 2-3/8-Inch Toilet Flush Valve Assembly with Adjustable Height Overflow Tube Fits Crane Tank # 3544, 3546, 3549, and 31088 Fits Crane Models # 3119, 3186, 3192, 3930, 3931, and 3932 Includes Stainless Steel Bolts, Nuts, Tank Gasket and Silicone Flapper 2.3-inch silicone flapper valve assembly Adjustable Overflow Tube from 7.5″ to 12″ For 2-piece Toilets Flush Valve Easy Measuring Tips – Video One piece or Two piece which is right for you? Video