Kohler K-3977-7 Wellworth Round-Front 1.6 gpf Toilet, Black Black Round front, standard-height toilet bowl 12" rough-in 28-1/2" (72.4cm) x 18-1/4" (46.4 cm) x 28-3/4" (73 cm) 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