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i have been using the smaller bottles for a while now, but plan on going big next bottle. IMO probable get the bigger one, most likely you will end up with it anyway. I just went with the smaller bottle because i couldn't manage the bigger bottle deposit at the time.
The small one is pretty small tho, nice and manageable if space is hard -
The BOC ones we use have 300 bar and at 118quid , can't complain we use two bottles for titanium , the air liquide seems to come 200-220 bar and some of the back street suppliers is only 100 bar so whilst a larger bottle may seem to have more gas if it's only 100bar in it then ....
Biggles567
mike_mcdermid
@Heldring
TIG welding. Should I get a huge 30L argon cylinder or a more manageable 20L bottle?