This Pressure-Assisted Toilet Tank really is the clear choice when shopping for a powerful and quiet pressure-assisted toilet tank. This tank must be installed on a separately purchased pressure-assisted bowl. Be sure to check your product information to confirm compatibility.Features:Pressure-assisted siphon jet flush actionClose-coupled flushometer tankSpeed connect tank/bowl coupling systemChrome metal trip lever1 Year Limited Warranty provided by American StandardDimensions: 9 in. long x 20.5 in. wide x 14.25 in. highAssembly Required.