10" Rough-In: Designed for bathrooms with a 10-inch rough-in, this model fits seamlessly into compact spaces without requiring renovations to existing plumbing. A 12-inch rough-in version is also available for greater flexibility. Highly Efficient Dual-Flush: 1.6 GPF for full flush (adjustable with floater) /1.1 GPF for half flush (adjustable on flush cistern) with a powerful flush system. It has two flush options and both are water-saving features. Soft-Closing Seat: With soft closing and push button removable design, this toilet seat makes easy to get off and will never disturb your family. Fully Skirted Trapway: Compared to two-piece toilets, it has no corners and grooves and is very easy to reach for cleaning. The way the bottom is shaped makes it easier to clean as well. All-in-one packge: Package Includes toilet, pre-installed soft closing toilet seat, pre-installed water fitting, high quality wax ring , floor bolts , and installation instruction.