KOHLER Highline 10 in. Rough In 2-Piece 1.1 GPF Dual Flush Elongated Toilet in White Seat Not IncludedKOHLER Highline Dual Flush Elongated Toilet The KOHLER Highline 10 inch Rough In Dual Flush Elongated Toilet combines water efficiency with a strong flush, thanks to its dual flush technology. Choose between a water saving 1. 1 gallon flush or a powerful 1. 6 gallon flush, offering over 4,000 gallons of water savings annually. Crafted with comfort height design and an elongated bowl, it ensures superior comfort and style in any bathroom. Key Features: