Could we get a few good photos of these types of connectors? Since they have been determined to be dangerous, it would be nice to know exactly what we’re looking for. The government site does not provide a good picture of such connections.
I changed out hundreds of them in the nineties and if you see one do not disturb it as any movement can cause it to break open and leak.
They are brass colored through the entire flex.
There is a short video on the subject. http://archive.org/details/gas