We don't have anything specific for a motorhome, and the best we can offer is the vinyl trim molding, if that's what you are looking for, like the 1" wide Premium RV Vinyl Insert Trim Molding # 37210015 or 3/4" wide # 37211235.
I have added a link below to our entire selection of trim molding for you, which you can choose from width or color. view full answer...