If you mean the one that comes in the kit you get when you buy the trailer, I threw that away after the first trip. Get one of those camco kits from camping world or walmart. They even come with caps that attach to the end of the hose so 'stuff' doesn't leak out.
It won't fit in the storage tube though, so you'll have to change that as well, but at least you won't get splashed again.
2011 Chevy Silverado Crew Cab 4X4
2009 210 WBS