KOHLER K-3658-RA-96 Highline Classic Comfort Height Two-Piece Elongated 1.28 Gpf Toilet with Class Five Flush Technology and Right-Hand Trip Lever, Biscuit Comfort height feature offers chair-height seating that makes sitting down and standing up easier for most adults Right-hand polished chrome trip lever included Combination consists of the k-4436 tank and the k-4199 bowl Standard 12-inch rough-in Watersense toilets meet strict epa flushing guidelines, including using at least 20 percent less water than 1.6-Gallon toilets