I've been looking at buying a bigger spool of wire as I went through the 0.7 spool in no time. Was just about to buy one off ebay but noticed it said won't fit hobby welders.
Bought it second hand so no adapter with it. Also weldequip was the first place I looked for wire & they are sold out, also looked for an adapter but all I could find was one for converting 5kg to 15kg here http://www.weldequip.com/wire-adaptor.htm
Just been told that the black disc prior to the plastic tighteneing nut are stepped to take the larger spool. Just looked & it is stepped so I should be ok.