Single Flush: Single Flush 1.28 GPF Rough-In: 10" Rough-In Standard Elongated Bowl: The elongated bowl provides extra room and comfort. 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.