Recertified M4 Aluminum Medical Oxygen Cylinder

Recertified M4 aluminum medical oxygen cylinder offers the perfect solution for everyone who needs a convenient, lightweight transportable medical oxygen supply for shorter amount of times. Even with its small stature, it can supply just under 5 hours of oxygen depending on the device being used in conjunction with it. Four cubic foot (113 liters) oxygen tank with a standard CGA870 post valve.

This cylinder features non-sparking aluminum. It is a lightweight, easy-to-transport aluminum requalified cylinder that is DOT approved, and ready for medical or industrial use.  It comes 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 one of the best medical oxygen tanks 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

  • 3.21″ diameter x 8.75″ height (Approximate measurements as these may vary based on manufacturer)
  • DOT-approved
  • 2216 PSI / 153 Bar
  • 1.7 lb. approximate weight
  • Capacity 4 cubic feet / 113 liters
  • 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 3 lbs
Dimensions 4 × 4 × 9 in

Medical, Medical Oxygen




4 cu ft / .70 liters


Painted Dome, Temperature-Sensitive Clear Coat


3.21 inches

Gas Type




Service Pressure

2216 PSI / 153 bar








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