Water Heater Expansion Tank; Type Bladder, Vertical; Applicable Standard ASME; Inlet/Outlet Connection 1/2" Threaded x 3/4" Threaded; Temperature Rating 240 Deg F; Pressure Rating 125 PSI; Tank Dimensions 24" Diameter x 55-5/16" Height; Tank Capacity 79 Gallon; Diaphragm Type Heavy-Duty Butyl Rubber; Inclusions/Features Steel Shell; Application Hydronic Expansion Tank, Non-Potable Hydro Pneumatic and Drawn Down