HE-20-317 Gerber Ultra Flush 1.28 gpf 10 in Rough-In Two-Piece Elongated ErgoHeight Toilet - WhiteHarness 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. ErgoHeight™ ADA Elongated Bowl for added comfort and ease of seating onto the bowl Chrome, metal tank lever Large, 2" fully glazed trapway for clog-free waste removal Sloan Flushmate Pressure Vessel Inside Large dual fed siphon jets increases the speed of the flush, for a quick and clean bowl everytime Large water surface to thoroughly rinse bowl with each flush WaterSense® 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 toilet 10" Rough-in 10 Year Warranty on Pressure Vessel, Limited Lifetime Warranty on Vitreous China Double nut, multi-point tank-to-bowl mounting system for easy tool-free installation Non-Sweating Insulated Tank ADA Compliant