Originally Posted by Johnny Yuma
I'm looking for insight as to which cooler brands/models will sit directly on the rails without the need for cooler mounts or a drop bag to keep it suspended.
Lots of brands will do this just fine. I have a Yeti 110 that would sit on the rails of my frame. However there are other factors at play. For instance if your frame bay isn't deep enough, the cooler will just sit on the floor of the raft and not be supported on the rails. On my boat with 21" tubes it sits on the floor and I have to suspend it, on my boat with 22" tubes it will rest on the rails. If you have an open bay on a Cat boat this wouldn't be an issue.