At scout camp last week it was discovered the Coleman gas lanterns we have had a slight leak, between cylinder and light fitting. The cylinder screws into the lantern and a quick bit of surgery revealed the existence of an o ring that had lost its bounce through age.
Googling the lantern type and o ring spare didn't come up with anything useful. Can I go to "o rings R us" and get one of the appropriate size, or are there temperature considerations to take into account, given that the expanding gas/vapour is Quite Cold?