Are O2 tanks/regulators compatible with CO2? - Home Brew Forums

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Old 08-10-2010, 02:54 PM   #1
msa8967's Avatar
May 2009
North Liberty, Iowa
Posts: 2,878
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Just noticed the used tank and regulator I bought with my kegging supplies has markings for use with O2 instead of CO2. Is it safe to ssume that I can still use this tank and regulator provided that all of the gas inside has been purged? I can think of any problems but I justa want to be sure.

Mick Arnett
North Liberty, Iowa
"Beer will change the world. I don't know how, but it will."

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Old 08-10-2010, 03:50 PM   #2
Oct 2007
QCA, Iowa
Posts: 959
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If you can find someone to fill it, sure, but that won't be easy. They use different fittings. It is possible to convert a tank from O2 to CO2, the tank I'm using now was converted, so it's possible that's what you've got. I'm also using an O2 regulator with a CO2 fitting. Works fine.

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Old 08-10-2010, 04:09 PM   #3
Aug 2008
Portland OR
Posts: 5,387
Liked 63 Times on 59 Posts

What a potential nightmare. . . it really shouldn't be done but I supposed as Scimmia proves it can be done.

If you do convert make sure to clearly mark the tank as CO2. Better yet see if your gas supplier can exchange it for the right kind of tank.

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