Champion 4, Bone, Toilet Tank, Traditional Styled Tank Lid, Trip Lever, Everclean Anti-Microbial Surface Inhibits The Growth Of Stain & Odor Causing Bacteria, Mold & Mildew, Low Consumption, 6.0 LPF, 1.6 GPF, Features The Champion 4 Flushing System 4" Piston Action Accelerator, 12", 305 mm, Rough In, 100% Factory Flush Tested, 10 Year Limited Warranty, Use With American Standard Brands Champion 4 Bone Toilet Bowl Model # 3225.016.021, TV #148-480.