This cyndrical tube is normally made use of for nitrogen, helium, argon, and argon/ carbon dioxide mixes. This cyndrical tube ships vacant but can fill up or traded at many gas suppliers.
Comes with a CGA-580 valve for Argon Nitrogen Argon/CO2 service
UN/ISO stamped "USA" for use in the United States
10 year hydrotest w/ cap
Cylinder is shipped empty with no product or shoulder labels
Color of cylinders may vary