Gerber's Water-Saving Toilet

The Viper is a 0.8-gallon-per-flush (gpf) toilet that will save 50% more water than the national standard 1.6 gpf, the company says, and 33% more water than high-efficiency toilets. In addition to a 17-inch chair height, the Viper features a 2-inch fully glazed trapway, dual-fed siphon jets, 3-inch flush valve for faster water flow, and a 12-inch rough-in, among other highlights.
gerberonline.com