Yes they do, they're designed to be air tight. They used a lot by survivalist that store food in buckets a lot. They are and water tight.
I've never seen those I'll have to take a look at them. The other bucket just look so easy to open.
My grip is probably not the strongest but Those buckets are just not easy to open either. Besides if I can make it easier to open and and work s,arter then I will.
I might give it a try and see how they work.