Kohler K-4641-0 Memoirs 1.6 gpf Tank with Classic Design, White 12" (30.5 cm) rough-in Class Five(R) - provides tremendous bulk waste flushing performance and best-in-class bowl cleanliness 3-bolt Installation - Three pre-installed tank bolts save installation time Canister flush valve provides smooth flushing actuation with consistent water usage, flush after flush Polished chrome trip lever