Well, this looks like a miserable failure for me. I was unable to remove the CGA 350 inlet with hand tools no matter how hard I tried and only succeeded in almost totally rounding off the hex on one. I finally had an auto shop remove them with an air gun. On both, the regulator threads appear to have been damaged and perhaps stripped. There is a solid piece of metal stuck between the threads on each of them at about the 3rd or 4th turn in. Damn.
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