I have an older two-burner stove and would like to use it again. What parts do I need?Updated 2 months ago

Primus no longer stocks parts for the older burners. There are some forums on the internet for enthusiasts of old stoves. You could visit www.classiccampstoves.com and see if you can find some information about the stove there.
Try to keep as many original parts as possible. Just check that the O-rings and seals still look fine.
There are other suppliers on the market who can supply suitable seals. Your local gas specialist will also be able to help.