Water Heater Expansion Tank; Type 2-Piece; Inlet/Outlet Connection 3/4 Inch Male Threaded x 3/4 Inch Male Threaded; Tank Material Stainless Steel; Tank Inner Lining Polypropylene; Temperature Rating 200 Deg F; Pressure Rating 150 PSIG; Tank Dimensions 10.6 Inch Diameter x 13.7 Inch Height; Tank Capacity 4.8 Gallon; Tank Warranty 1 Year Limited; Diaphragm Type Butyl Rubber; Application Potable Water System; Applicable Standard NSF/ANSI 61G/372, UPC; Lead-Free; Maximum Acceptance Volume 2.19 at 60 PSI