Folks a bit of useful info for converting various regulators to different gases. Please note though the disposable type of regulator will still need to be replaced when converting to the large type of gas bottles.
You can get this adapter to convert your CO2 regulator to enable you to use a Argon/CO2 bottle
http://www.ebay.co.u...88998734&_rdc=1
and this adapter to convert a Argon/CO2 regulator to fit a CO2 bottle
http://www.ebay.co.u...22808256&_rdc=1
thanks to ibrooks for this info.
And a big thankyou to GrahamHill for highlighting a potentially dangerous issue with the CO2 convertor to . Please see the post beneath this one before you buy a converter.