I vote for the Rochester Wide Band (I know, I know, it sounds like a cigar). About $1.50 -1.70 in small quantities over the net.
Also a quick disconnect allows you to get the equipment on you ahead of time and easily, in an open boat in mixed company "hook up" to the tubing. If you get the QD with a valve you won't have the problem of peeing all over yourself, boat and so on and you can flush it at your leisure. However it require that you carry an extra QD fitting to allow you to use the unit when you are not hooked up.
I leave it on until I get back to a hot shower. Soap and warm water ease taking it off.
Dave D