The San Raphael Pressure Lite is the industry’s first one-piece, 1.0-gpf high-efficiency toilet with pressure-assist technology, the company says. Compressed air is used to propel water for robust flushing power. According to the firm, the toilet can save a household of four 7,000 to 10,000 gallons of water a year. The one-piece unit has Comfort Height seating and an elongated bowl. 800.456.-4537. www.kohler.com.