The Irvine™ two-piece toilet delivers powerful swirl-style flushing in a contemporary skirted design. The clean and minimalistic profile flows seamlessly from tank to bowl, creating one of the most unique designs on the market. 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™ 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. 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" fully glazed trapway. CleanCoat™ technology inhibits the growth of water scale and mineral stains for improved ease of cleaning. Combination consists of the K-20485 bowl and K-20205 tank. Standard 12" rough-in.