Colony® One-Piece 1.28 gpf/4.8 Lpf Chair Height Elongated Toilet With SeatThe Colony One Piece Right Height Elongated Toilet from American Standard is a compact, low profile space saver with a clean, modern look. Thanks to its sleek one piece design, Colony eliminates the gaps and crevices where dirt and grime collect making it a hygienic, easy to clean option for the busiest bathroom. This high efficiency toilet (HET) uses just 1. 28 gallons of water per flush (gpf), saving 20% more water than a standard 1. 6 gpf toilet.