PLEASE NOTE: 2015 STAMPED ON CYLINDER IS NOT THE EXPIRATION DATE, IT IS THE SERVICE PRESSURE RATING FOR THE TANK. THESE TANKS ARE BRAND NEW IN 2020. LOOK FOR THE MANUFACTURE DATE AFTER M5659 (MANUFACTURER #) SEE THE SECOND PRODUCT IMAGE FOR A BETTER EXPLANATION. 23.9 cubic foot medical oxygen tank with CGA870 post valve installed. Ready to perform in EMS, home oxygen, and hospital use. Cast from a special alloy that's extra resistant to corrosion, fractures, and damage for the utmost in safety and durability. Light, strong, and built to the highest standards of testing and quality Brushed finish and green painted dome, in non-sparking aluminum. Meets U.S. Department of Transportation (DOT) specifications. Requires Prescription to fill. Ships Empty