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Same prob as pound shop as you and size seems to have got smaller. I also dont like buying lots of cans!
That is good deal i just scratching head trying to work out conversions with ml and delivery etc.
I always use 300ml London universal gas refill, its not just advised by people here it is sold by keen i presume same mix as newport etc has near zero impurities logo on.
Everyone in UK seems to use this i get cheap in bulk 72 300ml cans for 90 delivered, not sure on conversion thou...