From the Manufacturer
The Santa Rosa Comfort Height 1-pc compact elongated 1.6 gpf toilet offers the exceptional functionality you expect from Kohler in a smaller footprint, so you can transform even the smallest of bathrooms into a well-designed, comfortable space.
Product Features: One-piece configuration provides a uniform look and simplifies installation Elongated bowl offers comfort and convenience, extending out an extra 1-1/2" compared to a round configuration Covered under Kohler's 1 year limited warranty The Santa Rosa toilet offers exceptional functionality with a small footprint Constructed of durable, easy to clean vitreous china Installs in a floor mounted configuration Features a powerful gravity flush with AquaPiston technology ADA compliant - complies with the standards for toilets set forth by the Americans with Disabilities Act Comfort Height - designed for ease of use, with a higher than average bowl Includes a Brevia Q2 seat and cover Product Technologies / Benefits: AquaPiston: AquaPiston single flush canister technology uses the force of gravity and a precision-engineered tank, bowl, and trapway to create a strong, efficient siphon during flushing. The canister flush valve's 3:2 ratio optimizes flush performance and resists warping and deterioration, while its durable design features 90% less exposed seal material than a standard 3-inch flapper flush valve, guaranteeing leak-free performance. The light-touch canister requires lower activation force than a flapper, and once activated, allows water to flow into the bowl from all sides (360 degrees), increasing each flush's power and effectiveness. Comfort Height: Comfort Height toilets offer the greatest accessibility and ease of use with a bowl height of between 16-1/2" and 18", the same as a standard chair. Product Specifications: Overall Height: 28-3/16" (measured from bottom of base to top of tank) Overall Depth: 27-3/4" (measured from back of tank to front of rim) Overall Width: 18-3/4" (measured from rightmost to leftmost edge of toilet) Bowl Height: 16-1/2" (measured from floor to bowl rim) Flow Rate: 1