KOHLER K-3609-U-0 Cimarron Comfort Height Elongated 1.28 gpf Toilet with Class Five Technology and Insuliner Tank Liner, Less Seat, White 28-3/4"L x 17-5/8"W x 30-3/4"H Insuliner tank liner prevents tank condensation Class Five(R) flushing technology provides tremendous bulk waste flushing performance and best-in-class bowl cleanliness Canister flush valve provides smooth flushing actuation with consistent water usage, flush after flush Exclusive Dry Lock(TM) installation system facilitates installation, and keeps floors dry