Description American Standard 7/8-Inch Bottom Water-Fed Toilet Fill Valve, Adjustable Height 8.5–12 Inches 7/8-inch Thread for Bottom Water Fed Toilets Adjustable Height 8.5-inches to12-inches Tall Fits Kohler, American Standard, Eljer, Toto, Jacuzzi and replaces Fluidmaster parts Universal fit for both 1 piece and 2 piece toilets that are bottom water fed with a 7/8-inch pipe connection