Kohler K-3999-7 Highline Comfort Height 1.28 gpf Toilet, Black Black Comfort Height Elongated Toilet bowl - With a seat height comparable to that of a standard chair, Comfort Height toilets make sitting down and standing up easier for people of all ages 12" rough-in 29-1/2" (74.9cm) x 18 (45.7cm) x 31-1/4 (79.4cm) Class Five(R) - provides tremendous bulk waste flushing performance and best-in-class bowl cleanliness 3-bolt Installation - Three pre-installed tank bolts save installation time