Originally Posted by riverhawk
The CO2 is for the keg of beer. 25/75 is for welding the stainless. Picked up a bottle of CO2 yesterday at Maverrick.
I use 25/75 for MIG welding all types of steel except stainless. At least in my experience 25/75 doesn't work very well on stainless. I have used tri-mix (with stainless wire) with good results for MIG welding stainless. A much cheaper and better option for welding stainless is to use 100% argon with a TIG welder.
The last time I compared welding gas refills between Airgas and Maverick, Maverick was at least 30% less cheaper.