Oxygen cylinder various sizes

Oxygen cylinder specifications: designed for individual use by people suffering from oxygen deficiency such as chronic obstructive pulmonary disease and others. Filled oxygen cylinder. Oxygen cylinder equipped with a top valve to manually control oxygen flow. You need an oxygen regulator. The oxygen cylinders are available in several capacity options: 2 liters, 3 liters, 5 liters, 6 liters, 7 liters, 10 liters, 15 liters, 20 liters, 40 liters.