Available in various sizes. Carrying cases or carts are used for the different size tanks

M2 – Weighs less than 2 pounds and only 7.9 inches in length, this extremely lightweight, compact medical oxygen cylinder is the perfect solution for anyone who needs a convenient, easily transportable medical oxygen supply for a short amount of time. This cylinder is the smallest aluminum oxygen cylinder in the world yet can supply up to 2 hours of oxygen.

M4 – medical oxygen cylinder is a great solution for anyone who needs a convenient, easily transportable medical oxygen supply for a short amount of time. This cylinder weighs under 3 pounds and is only 12 inches in length. This cylinder can supply up to 7 hours of oxygen.

M6 – extremely popular medical oxygen cylinder is the perfect balance between portability and oxygen supply duration. The M6 cylinder is less than 15 inches in length and weighs only 3 pounds and can supply up to 10 hours of oxygen.

ML6 – Similar to the M6 cylinder, the ML6 is a great balance between portability and oxygen supply duration. This cylinder weighs under 4 pounds and is shorter and wider than the M6 cylinder. This cylinder can provide up to 10 hours of oxygen.

M9 – a popular cylinder is a great balance between portability and oxygen supply duration. The M9 is less than 16 inches in length and weighs only 4.5 pounds yet can supply up to 14 hours of oxygen.