Combination Chair Height elongated bowl and left hand trip lever tank, less seat HET single flush configuration with left hand trip lever High efficiency - Full Flush (1.28 gpf/4.8 Lpf) 12" rough, 16-1/2" (419 mm) rim height bowl with fully glazed 2-1/8" (54 mm) trapway Best 1,000g MaP flush and WaterSense listed