Is this a CO2 Regulator?

[tbayav8er]

Hi everyone,

Found someone selling this, and he listed it as a "pressure regulator". He found it at a yard sale, and doesn't know what type of gas it's for. He's selling it a lot cheaper than the price of a new CO2 regulator. The picture looks like it's almost new. Can anyone confirm this is a CO2 regulator, and should work with my keezer build? Thanks!

 

[Dr_Jeff]

It looks like one to me.
The only way to be certain would be to check the threads on the inside of the nut that connects it to the bottle.

I'd take my chances and buy it.