Hi all. I just thought I'd share my experience with the Harbor Freight O2 regulator. Not sure if this has been discussed already. Here goes....

I only found out about using oxygen about a weak ago, from the nice people on this site. Since then I scored a large bottle (without a prescription for now). The regulators I was given only went up to 15 lps. This works for the most part but I was finding that the bag on my regular non-rebreather would not fill fast enough. I read in a few posts that a couple people had luck with the Harbor Freight regulator. I picked one up and noticed a couple things. The first thing I did (being a master plumber) is soap tested the fittings. I used some dish liquid mixed with water - in a spray bottle. I turned the tank on with the regulator tightened down. Sprayed the fittings and found two leaks. One was pouring out O2. I wound up unscrewing all the fittings and tephlon taping them. Retested ok.

Just thought I would bring this up as a safety concern. I always shut the main valve off after each usage too. It's a good habit to get into. Otherwise.... this regulator is waaaay better than the others I had. Just my 2 cents.

Thanks for the info. I'm so used to thread sealing domestic and gas lines with tephlon or pipe dope everyday. I wasn't aware of that. Thanks very much.