I was recently given a Rothenberger Roxyplus soldering/brazing kit and having seen the price of a replacement oxygen cylinder I understand why! I purchased a replacement propane cylinder which looks cheap compared with oxygen cylinder. The Oxyturbo oxygen cylinder is less than half the price of the Rothenberger one but says it cannot be used on other systems. Is there any reason why I can't use the oxyturbo cylinder if I get an oxyturbo regulator and connect the Rothenberger hose to this regulator? A new regulator and cylinder would still cost less than a Rothenberger oxygen canister and would make subsequent oxygen supplies much cheaper.