KOHLER 4166-U-0 Cimarron 1.28 Gpf Toilet Tank with Insuliner Tank Liner, White Standard left-hand polished chrome trip lever included Insuliner tank liner minimizes condensation on the tank when exposed to high humidity Combines with the k-4347 or k-4829 bowl to create a complete k-3887 or k-3851 cimarron toilet Aquapiston canister allows water to flow into the bowl from all sides (360 degrees), increasing the power and effectiveness of the flush Durable canister design has 90% less exposed seal material than a 3-inch flapper, for leak-free performance