Expansion Tank;Type Round, Combination Unit;Inlet/Outlet Connection 1/2" Male Threaded x 1/2" Male Threaded;Tank Material Cost Iron;Pressure Rating 100 PSIG;Tank Dimensions 11" Diameter x 16" Height;Tank Capacity 4.4 Gallon;Tank Warranty 7 Year Limited;Inclusions/Features Spring-Loaded Check Valve, Automatic Shut-Off Valve and Spring, Removable Strainer, Expansion Bypass, O-Ring Seal, Fill Gate Stem, Pressure Plate;Factory Pre-Charge Pressure Rating 12 PSI