The image below is of a "lifesaver" jerrycan, used in Australia to filter brackish water into pure water you can drink. It's a "must have" when you're traveling in the outback. Our friends at Lifesaver Bottle Australia have this to say: "We use and recommend LYNX Hooks to secure the Lifesaver Ultra Filtration Jerrycans. Securing them has been a problem before. It isn't now."