Product Features: Tank only configuration - allows the opportunity to match pieces with a selected bowl Covered under Kohler's 1 year limited warranty The Cimarron Collection combines versatile design with high-powered, efficient performance Constructed of durable, easy to clean vitreous china Features a powerful gravity flush with AquaPiston technology WaterSense certified - toilet uses 20% less water than the current standard while still maintaining superior performance 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. WaterSense Certified Product: To help make a difference on a global scale and to further its role as an industry leader in eco-performance practices, Kohler has established partnerships with a number of environmental organizations, including WaterSense. Many Kohler faucets and toilets are equipped with low-flow technology - they use less water, while continuing to meet superior performance standards. Product Specifications: Overall Height: 14" (measured from bottom to top of tank) Overall Depth: 8" (measured from back to front of tank) Overall Width: 17-5/8" (measured from rightmost to leftmost edge of tank) Flow Rate: 1.28 GPF (gallons per flush) Variations: K-4166-RA: This model K-4166: This model with left hand trip lever K-4167-RA: 1.6 GPF version of this model K-3888-RA: This model with bowl (complete toilet fixture) About Kohler: Gracious living is characterized by qualities of charm, good taste, generosity of spirit, and the enhancement of nature. It is Kohler's mission that you improve your sense of gracious living with every experience you have with a Kohler product or service. Kohler lives on the leading edge of design and technology, while maintaining a constant level of quality, regardless of price. It sets the standard of excellence in its field, and yet is constantly striving to improve. From sustainable products in the kitchen and bath to power systems that protect data centers and urban landscapes all over the world - this is what the Kohler company is all about.