Dick, what does the tube from the BBQ lead too. Can this tube be replaced?
Though no expert, I have never seen a ferrule used with gas lines, they usually have flared ends on a metal tube. That said, it is real easy to cut that ferrule off and put on a flared fitting put on. A flairing tool is quite cheap, or any lots of shops that handle propane could do it for you.
You don't have your location in your user info. I know here in Calgary (and other places in Canada and the US) I just go to Fairview Fairview Fittings. I know after buying my Spitfire 180 and just the low pressure control from Dickinson, I went there to buy all the fittings I needed, and got great help. They have pretty much any gas fitting you would every need. LINK
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