Champion PRO 1.28 gpf/4.8 Lpf 12-Inch Rough Lined TankFeatures Champion Flushing SystemMade from quality, durable vitreous chinaMeets EPA WaterSense CriteriaTrade exclusive tankRobust metal trip lever and metal shank fill valveChrome finish trip lever is supplied12" (305 mm) rough-in4" piston-action Accelerator flush valveHigh Efficiency Toilet (HET), ultra-low consumption (1.28 gpf/4.8 Lpf), utilizes 20 percent less water