I looked at a spigot, but it wouldn't fit in my rack now or the one I've got lined up to replace it when I change it. Plus I really didn't want to drill a hole in the can. At least this way the cap is replaceable. My buddy Bill uses one that screws onto the cap with a short hose and a valve at the end. He just has to turn the can over on it's side to use it. It works for him since the can stays in that corner. But my main thing is I want to avoid having to take the can out of the rack if I don't have to.
I looked at those on Amazon but they are made to fit the neck of a 5-gallon water jug. The thing that swayed me to go in another direction was not wanting another item that needed batteries or charging to function. I'm sure I could have figured out a way to make the pump work I just didn't want to deal with more electric stuff.