Hot selling medical oxygen cylinders' sizes are as following:

Sizes : M4 (0.7L), 153Bar / 150Bar /139Bar

M16 (1.2L), 153Bar / 150Bar /139Bar

M9 (1.7L), 153Bar / 150Bar /139Bar

M6 (1.0L), 153Bar / 150Bar /139Bar

M22 (3.9L),153Bar / 150Bar /139Bar

MD (2.9L), 153Bar / 150Bar /139Bar

M60 (10.5L), 150Bar

ME  (4.6L), 153Bar / 150Bar /139Bar

M90 (15.7L), 200Bar

M122 (21.4L), 150Bar

M150 (28.9L), 150Bar / 200Bar