Product review (4 stars): For some reason I felt I'd receive a little more ...
For some reason I felt I'd receive a little more durability how this one mounts to the tank vs. the others that mount directly to the outlet.  I feel with the hose, you alleviate pressure on the outlet.  Might be overkill thinking, who knows.  Either way the product is worth the money if you are a car camper, especially for longer trips or big groups.  If taken care of, it should outlast me.