Review on 🟡 20 Yellow Fuel Gas Can Jug Vent Cap: Chilton Briggs Rotopax Gott Anchor Compatibility by Joe Montalvo

I bought them for the same reason as everyone else. For venting new gas cylinders, especially Rotopax. If I hadn't checked these vents before drilling the holes I would have ruined my new and expensive Rotopax. I've tried most of the 20 that came in the case I bought and none of them stayed locked for a few seconds. My Rotopax is mounted on the outside of my jeep and those vents that wouldn't stay closed would allow fuel to spill all over the place as I drive. I'm looking for other options but this isn't the one. I can only assume that the positive reviews are for a different product or are just plain wrong.