Hey guys. I'm not sure if this is the right forum for asking this type of question, but I figured I'd give it a shot. I've just purchased a set of Smith 30 series gas regulators. It was the twin pack for Oxygen and acetylene. When it arrived, the oxygen regulator fit the oxygen tank fine, but the acetylene regulator would not fit. I'm assuming it is because I have the small acetylene tank, i guess it is a "B" tank, but I'm not sure if this is the reason for it not fitting. If anyone with more experience on the fitment of these can help me, it would be appreciated. I broke the problem down to one of these:
1) Either the acetylene tank is too small for the regulator and has different threads
2) The new acetylene regulator's threads are damaged
If the problem is # 1, do they sell a fitting to make it work?