Missing part from regulator

Look like a valve, if you could get the id of it the manufacturer might have spare part.

Or try this http://catalog.hoke.com/viewitems/spare-parts/nut-n-mm?

thanks!!

that's not what he's talking about, he's talking about the screw on cap.

go to home depot and try the compression fitting cap they have. It'll be hard finding a proper replacement since these are made in china and may not use standard thread sizes.

check your inbox for the link to buy it.

Thanks neilshieh!! That's it, a compression fitting cap! I knew what is was called I just couldn't think of it.