The Corbelle two-piece toilet delivers powerful, clean swirl-style flushing in a sleek skirted design. Kohler's most complete flush ever, Revolution 360 swirl flushing technology keeps your bowl cleaner longer than a conventional flush. Installation is easy with the ReadyLock(TM) system: the skirted trapway installs to the floor flange and attaches to the toilet, eliminating the need to drill holes while offering the same secure installation as non-skirted toilets. This WaterSense(R)-labeled high-efficiency toilet brings you annual water savings. Two-piece toilet. Elongated bowl offers added room and comfort. Skirted trapway simplifies cleaning. Revolution 360 swirl flushing technology generates a forceful swirling motion to keep the bowl cleaner, longer. Comfort Height feature offers chair-height seating that makes sitting down and standing up easier for most adults. 1.28 gallons per flush (gpf). Standard left-hand Polished Chrome trip lever included. 2-1/8-inch fully glazed trapway. Patented ReadyLock™ installation system is a simple solution for skirted toilets that saves time, hassle, and eliminates the need to drill into the floor for a standard 12-inch rough-in. CleanCoat™ technology inhibits the growth of water scale and mineral stains for improved ease of cleaning. Standard 12-inch rough-in.