I'm not sure if other reviews have complained about this thing not fitting the bottles properly, other than I've seen a few people try have to use it on small CO2 cylinders without a thread on the cap this is clearly not for them. I've attached my photos, they match the valve cap threads perfectly, the same threads are on every weld gas cylinder I've ever used. I saw a review where someone said they had to enlarge the opening to fit over the bottle, don't know why. The threads are pretty standard and mine was perfect. My hanger even got a nice silver finish so it's not just bare metal. For 15€ I am very satisfied
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