Size 'D' Aluminum O2 Cylinder with Z-VALVE
Product Description

2215 PSI x 15 Cu. Ft. capacity(425 liters).
Dimensions: 4.38" O.D. x 16.5" tall.
The D medical oxygen cylinder is a great choice for anyone who needs a very portable oxygen system with a significant oxygen supply. This cylinder comes standard with a CGA870 medical post valve and the new 'hand tight' Z-VALVE.