WS-21-512 Gerber Viper 1.28 gpf 12 in Rough-In Two-Piece Elongated Toilet - White Set it and forget it with the reliable Viper 1.28 gpf Toilet. The tall, narrow designed Viper tank optimizes flush speed, and quickly refills using a trusted, industry best, Fluidmaster 400A Fill Valve. Powerful front rim jets maintain a clean and sanitary bowl with every flush. An exclusive multi-point mounting system and non-corrosive brass tank-to-bowl bolts ensure long lasting stability and ease of installation, making Viper the professional's choice.15 in - 15.5 in Height Elongated BowlColor-matched, metal tank lever with solid durable brass arm to complement any bathroom decorLarge, 2 in fully glazed trapway for clog-free waste removalLarge dual fed siphon jets increases the speed of the flush, for a quick and clean bowl everytime3 in flush valve for faster water flow and flushing powerWide water surface to thoroughly rinse bowl with each flush9 1/4 in x 6 1/8 in water surface to thoroughly rinse bowl with each flush1.28 gpf (gallons per flush), saves up to 16,500 gallons per year (vs 3.5 gpf toilet)Two-piece toilet12" Rough-inWaterSense® certified, High Efficiency Toilet (HET) to save 20 percent more water (vs 1.6 gpf toilet) and money!5 year, Limited Lifetime WarrantyBest-in-Class Fluidmaster 400A Fill Valve for durable, long lasting anti-siphon operation and easy replacementDouble nut, multi-point tank-to-bowl mounting system for easy tool-free installationToilet seat not included