The Rockton® toilet with Dual Force technology delivers precision engineered performance and meets strict water conservation standards, providing years of trouble-free operation. The geometric tank design echoes contemporary style in any bath or powder room. Sterling® Toilet Tank, 2-Piece, Rockton®, Gallons per Flush: 0.8/1.6 gpf, Bowl Mount, 14-3/4 in Height, 29-1/4 in Width, 13-5/8 in D, Vitreous China, White