12-27-2015, 01:00 AM
They do make cylinder adapters that will change the fitting sizes for you. I don't know what kind of tank you have or flow meter so I can't say which one you need to get the right combination. Generally CO2 tanks have a CGA 320 fitting vs. an Argon/CO2 tank that uses a CGA 580 fitting. Small tanks use something else.....
One example: https://www.arc-zone.com/index.php?main_...5ig28otfg2
One example: https://www.arc-zone.com/index.php?main_...5ig28otfg2
Willie