Dual Flush: The buttons for dual flush allow you to choose between a low 1.1 gpf light flush or a high 1.6 gpf full flush. Rough-In: Standard 12" Rough-In Square Bowl: A Square bowl design maximizes space by providing additional seat area with a sleek modern look. Standard Height: Between 15-17 inches, the standard height toilet is designed with ergonomic considerations, offering optimal comfort to users of all ages and body types. Durable Non-Porous Scratch Resistant Ceramic: Developed from ceramic, that is scratch-resistant and non-porous, providing a durable and reliable option that can withstand routine use.