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This is the real thing made in the U.S.A. Regulator fits standard 3/16" interior diameter fish tank tubing. Fits left hand thread Bernzomatic® and Worthington® 1.4 and 2.1 ounce oxygen bottles sold in the hardware store in the welding/brazing section. Buy this and our 22" Aeration Wand and make your own oxygen aerating system.
Does what it's supposed to do. Fits well on a Bernzomatic O2 cylinder, remembering it is left threaded. Aquarium tubing fits well, too. Just does its job nicely, without excessive spillage and hazard.
The regulator is well built. It's smooth to adjust to get a gentle flow. Note that the hose barb is not removable and is 3/16", whereas most carbonation/oxygenation stones have 1/4" hose barbs. You can force a 1/4" hose barb into 3/16" hose, but its very difficult to remove then. You can use a hose clamp and probably get a good seal, but there's a good chance it'll leak. What I did is buy a nylon hose coupler (Menards sells them) for 1/4" hose and then force it into the 3/16" hose on the regulator side, and 1/4" hose on the other side to the stone.
Does what it needs to do. Extremely cost effective and a solid product.
I picked up this tool and use it with every batch that I brew. I like that you can pick up this component, makes it cheaper if you already the other parts.
The Home Depot Oxygen bottles work fine with this regulator; however, the bottles cost $10 and do not last long. Better off buying a 2 micron air stone and air pump. You will need to run the air pump longer but it much cheaper in the long run.