Elongated bowl offers added room and comfort;Tall height offers seating 2-1/2" (63.5 mm) higher than Comfort Height for enhanced comfort, ease of sitting and standing, and gracious accessiblity;2-1/8" (54 mm) glazed trapway;Revolution 360 flushing technology generates a forceful swirling motion to keep the bowl clean longer;Fully skirted trapway simplifies cleaning;Sanitary guard where bowl and tank meet for ease of cleaning;Patented ReadyLock installation system, a simple solution for skirted toilets, saves time, hassle, and eliminates the need to drill into the floor for standard 12" (305 mm) rough-in;CleanCoat surface treatment inhibits the growth of water scale and mineral stains for improved ease of cleaning;Combines with the K-4143, K-4143-RA, or K-5711 tank to create a complete K-33813, K-33813-RA, or K-33814 Corbelle Tall toilet