THIS TANK ONLY WORKS WITH THESE 2 BOWLS: 3075000.020 or 3053000.020 Only for Concealed Trap-Way Bowl. Oversized 3 Inches flush valve EverClean surface inhibits stains and odors High Efficiency, Ultra-Low Consumption(4.8Lpf/1.28 Gpf), Utilizes 20% Less Water 12" (305 mm) rough-in PLEASE READ THE SPECIFICATION SHEET & INSTALLATION GUIDE IN THE Product guides and documents SECTION OF THIS LISTING BEFORE PURCHASING. Verify the model number of your toilet bowl prior to ordering. It will be stamped on the back part of your bowl.