HE-20-312 Gerber Ultra Flush 1.28 gpf 12 in Rough-In Two-Piece Elongated Toilet - White Harness the power of the ultimate flushing machine with an Ultra Flush® 1.28 gpf (4.8 Lpf) Pressure Assist Toilet. Boasting top of the line professional performance, its unique rim provides complete rinsing coverage with every flush. The tank uses a Sloan Flushmate® pressure vessel which releases compressed air in a downward path and forces water into the bowl, pushing waste out of the bowl and down the drain line. An exclusive six-point tank to bowl mounting system creates precise contact for superior stability and is designed to be tightened without tools.Standard Height Elongated BowlChrome, metal tank leverLarge, 2" fully glazed trapway for clog-free waste removalSloan Flushmate Pressure Vessel InsideLarge dual fed siphon jets increases the speed of the flush, for a quick and clean bowl everytimeLarge water surface to thoroughly rinse bowl with each flushWaterSense® certified, 1.28gpf/4.8Lpf High Efficiency Toilet (HET) to save 20% more water (vs 1.6 gpf/6 Lpf toilet) and money!Two-piece toilet12" Rough-in10 Year Warranty on Pressure Vessel, Limited Lifetime Warranty on Vitreous ChinaDouble nut, multi-point tank-to-bowl mounting system for easy tool-free installationNon-Sweating Insulated Tank