I picked up a Purox heavy duty a numper of years ago for $250 at a flea market, check at the welding shops for the different makes, try to stay away from the NO name off shore ones thet have no parts available. You can also own the smaller tank (MC & B size) all depends how much welding and cutting you want to do, or if your just using it as a flame wrench, you will go through more oxyigen. If you also have a mig welder, you will find the b size tanks last quite a long time, but if you use them for welding it somtimes best to rent the larger tamks.
