Expansion Tank; Type In-Line, Floor Mount, Precharged; Inlet/Outlet Connection 1/2" Male Threaded; Tank Capacity 2 Gallon; Tank Material Carbon Steel Shell; Temperature Rating 240 Deg F; Pressure Rating 100 PSI; Precharge Pressure 12 PSI; Diaphragm Material Butyl Rubber; Tank Dimensions 8" Diameter x 12-5/8" Height; Application Residential/Light Commercial, HVAC