Yes, that's it....beat me to it on what it's called & part number.
The kit is sold multiple places, including camper supply places, ebay, amazon and even walmart online.
Mine broke when camped at Glacier National Park a few years ago. I was able to jury rig it up thru the rest of the trip until got home, ordered a replacement and installed.
The replacement is identical to factory but added a piece of aluminum as a guide to prevent the rubber section from drooping down when the slide is retracted in.
2012 Fun Finder XT 276 Toy Hauler & Harley Davidson Ultra Classic with Condor wheel chock
2014 Dodge Ram 2500 AT 4X4 Crew Cab 6.4 L Hemi, 373 gears, tow package, Rambox option, Revolver X2 tonneau cover, Equal-I-zer anti-sway hitch.