Quote Originally Posted by Ropey View Post
Am I right to assume that high altitude lighters are better constructed to withstand higher vapor pressures inside the lighters at high altitudes?

My follow up question would be: could those lighters hold isobutane at sea level without the potential of rupture due to their better interior construction?
Yes to the first question and I have no clue to the second question. I can ask one of my lighter reps on Monday