Kohler. Dual-flush operation on the two-piece Strela toilet allows for solid-waste flushing at 1.6 gallons or liquid waste flushing at 0.8 gallons. The WaterSense-certified unit features a skirted toilet bowl for a cleaner look, an elongated bowl, and Comfort Height. It comes in white, almond, honed white, ice gray, biscuit, or black. The Strela collection, which also includes lavatories and a wall-mount vanity, is highlighted by soft ridges and shallow grooves that the maker says evoke a natural, organic feel. 800.456.4537. www.kohler.com.