Hi Paul,
I just picked up a Hurricane 232 in the spring. The previous owner left the portable toilet in the head, and it turns out to be a pretty decent one.
Its a Sear's branded Dometic. Its very functional!
The only issue I have is the the floor in my head isn't quite flat, so I had to do some enginerring to get the toilet to sit level.
Its very similar to this one: http://www.sears.com/shc/s/p_10153_12605_SPM208767271P?prdNo=17
Hope that helps.
Rich
