Bill,
Here is the link to the towel bar we bought. I put it up about 2 weeks ago and we have been on the road now for a week. We spent some time in Jake's Lake,AZ., then up to Bryce Canyon N.P. where we had two days with Don, (mini Oliver gathering) then we are headed over to Arches for a couple days, then work our way back home.
So far it's holding very good and no sign of coming loose, and yes, it's attached on the front of the frig door, and very handy. We also got that screen door handle that I think you posted about.
Last evening, Don and I, did some fresh water tank filling with a bucket and short garden hose. With Carol's help (our own resident expert) and of course reading the manual we got enough water in our tanks to get us to the next camp site. It's always good to do these things at home before you get out in the boonies, but then again, we did a practice run and promply forgot what we did. Dang old people, you can't teach them anything.
https://www.amazon.com/Stainless-Contemporary.../B00OH4ID9U
KES Suction Cup Single Towel Bar SUS 304 Stainless
Stan