The KOHLER Wellworth toilet tank features a 1.28 gpf Class Five® canister flush and an Insuliner® liner that minimizes condensation and beaded moisture. A right-hand Polished Chrome trip lever and included tank cover locks add practical details to its classic profile. Whether you are updating a powder room or refreshing a primary bath, this water-saving tank delivers the flushing power, quiet efficiency, and timeless design you want.