The high pressure carbon dioxide systems are supplied in seamless cylinder batteries of various capacity and sizes.
Carbon dioxide is also electrically non conductive. The extinguishing mechanism actuated by the carbon dioxide is based on the reduction of oxygen to levels that cannot support anymore a combustion. 
Another peculiar characteristic of a carbon dioxide fire protection system is the high performance as extinguishing agent both for total flooding and for local applications.
All high pressure carbon dioxide systems are engineered and manufactured  according to the current  NFPA and EN standards.
The components are EN 12094 approved and the cylinders are TPED or DOT approved.