Does anyone know if a regulator intended for medical use will work on one of those tanks from the hardware store? DO they both use left-handed threads and have a post valve?
The reason I ask is because I already have the tank, line, and stone. I just need the regulator. I decided to check on ebay, and there are quite a few O2 regulators on there for both welding and medical use.
There are some really compact ones for medical use that would cost about $10 (that includes the shipping), but I can't see in the pictures if they have the same sort of connectors needed to hook to a regular welding supply O2 tank.