KOHLER K-4007-0 Toilet, 24.25 x 16.75 x 25.63 inches, White One-piece toilets integrate the tank and bowl into a seamless, easy-to-clean design Round-front bowl offers an ideal solution for smaller baths and powder rooms Low-profile design AquaPiston canister allows water to flow into the bowl from all sides (360 degrees), increasing the power and effectiveness of the flush Durable canister design has 90% less exposed seal material than a 3-inch flapper, for leak-free performance.