Hydronic Expansion Tank;Type Vertical, Floor Standing;Applicable Standard IS0 9001;Inlet/Outlet Connection 1-1/4" Female Threaded x 1-1/4" Female Threaded;Tank Material Urethane Topcoat Steel;Temperature Rating 240 Deg F;Pressure Rating 100 PSI;Tank Dimensions 26" Diameter x 47" Height;Tank Capacity 86 Gallon;Tank Warranty 1 Year;Diaphragm Type Heavy Duty Butyl/EPDM;Air Charge Type Factory Pre Charged;Air Charge Capacity 12 PSI;Inclusions/Features Projection Welded Air Valve, Watertight Reservoir for Expanded Water;Application Large Residential, Light Commercial, Closed, Non-Potable, Hydronic Heating System