<DIV style="font-family:Arial, sans-serif; font-size:10pt;"><DIV>Hi Everybody, </DIV><DIV> </DIV><DIV> On my O2 regulator and my O2 flow meter I have barbed fittings, I assumed that I would put some type of rubber hose on there, but now I'm wondering if that may not be kosher. What is the story on that ? I would just need a very short piece to go from the regulator to the flow meter. I will have a O2 tank in my cabin for the time being. Also I did get the electronic flow controller that Cliff recommended, but am not ready to do that yet. </DIV><DIV> </DIV><DIV>Brian </DIV><DIV> </DIV></DIV>