"Saves space in RVs and on boats," the ad concludes. Well, it sure looks like it would do that.
I wonder... will it stretch when merely pulled on? A 25' hose when expanded is only 9' long without water in it; what if the water spigot is 20' from the trailer? Does the owner have to turn on the water, and put a kink in the hose while trying to screw it onto the trailer fitting?
Somebody needs to be a guinea pig and buy one, and report to all of us.