He said the Wix oil filter uses cork. Pro King trans filter from AAP uses rubber.
Had I done my own filter change (parking lot is not a good place to do it, so I had the dealer do it) I would have a Pro King filter with AAP-branded ATF+4. Since I had the dealer do it, I currently have whatever they used, assuming Mopar filter and Mopar ATF+4. I did specifically ask what fluid they use since it's rare for an LH to come through their service department anymore and the service writer smiled and said "+4" with zero hesitation, so I know they were on the ball. Expensive to have them do it, but it's worth the piece of mind that some random kid hired by a small shop thinking "Well this bulk stuff we use in the Hondas, Fords, GMs, Toyotas, etc. works fine, I can dump it in this Chrysler, +4 is an old wives tale blah blah blah" isn't monkeying my transaxle and making me dump a few grand that I don't have into the car when the trans implodes.
I'm told that any bottle with ATF+4 on the label will do, since it all comes from the same refinery/lab/mixing facility that is certified by Chrysler to make the fluid, with whatever label the brand puts on it. Personally I detest Walmart so I don't give a rats hindside how much cheaper it is. I'll be adding the AAP stock that I have when I pump out the fluid in it currently and refill (3x, half the fluid is still in the TC) as my fluid change. Check AAP, AZ, O'Reilly's, and whatever auto parts store is local to you.