Recertified M9 Aluminum Medical Oxygen Cylinder

Recertified M9 aluminum medical oxygen cylinder offers a great balance between portability and oxygen supply duration. Even with its small stature, it can supply up to 5 hours of oxygen depending on the device being used in conjunction with it. Nine cubic foot (255 liters) oxygen tank with a standard CGA870 post valve. This cylinder features non-sparking aluminum. This lightweight, easy-to-transport aluminum requalified cylinder is DOT approved, and ready for medical or industrial use.  It comes fitted with a CGA870 post valve installed and a freshly painted dome in a Medical Green color for easy identification.

Built from a special alloy, this medical oxygen cylinder is tough against fractures and corrosion. It resists damage even under an extended high-pressure load. And the valve is 100% leak tested for safety assurance. Strict testing and quality control, as well as hydro-static testing, make this the best medical oxygen tank you can buy.

Ideal for service in-home oxygen, EMS, First Responders, and institutional uses. U.S. Department of Transportation (DOT) approved.

Premium Construction

  • Light, corrosion-resistant aluminum
  • Resists fractures and corrosion
  • CGA870 post valve
  • .750 UNF Teflon O-Ring

Quality Features

  • 4.5″ diameter x 16″ height (Approximate measurements as these may vary based on manufacturer)
  • DOT-approved
  • 2216 PSI
  • 4.5 lb. approximate weight
  • Capacity 9 cubic feet
  • Applications: medical oxygen, aviation, dental, etc.
  • Ships empty

Please Note: All reconditioned cylinders are sourced from several manufacturers and may vary in height +/- several inches. We apologize, but we are unable to take special requests at this time.

PLEASE NOTE: All cylinders ship empty. Doctor’s prescription required to fill with medical oxygen. Seek the advice of a physician if you have questions about the proper use of medical oxygen. Please be sure to use a regulator that fits the cylinder valve, and that is correct for your application of use.

More oxygen cylinders can be found on our oxygen cylinder page and our medical oxygen cylinder page.

Questions? Please see our frequently asked questions page.

Additional questions? Email us at [email protected].

Weight 5 lbs
Dimensions 5 × 5 × 18 in

Medical, Medical Oxygen




9 cu ft / 255 l


Painted Dome, Temperature-Sensitive Clear Coat


4.5 in.

Gas Type




Service Pressure

2216 PSI / 153 bar








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