American Standard 4000.101.020 Cadet Tank, White High Efficiency, Ultra-Low Consumption(4.8Lpf/1.28 Gpf), Utilizes 20% Less Water 1.28 Gpf 12-Inch Tank Complete With Coupling Components And Tank Trim Only for Concealed Trap-Way Bowl. Oversized 3 Inches flush valve EverClean surface inhibits the growth of stain and odor-causing bacteria