For the life of me and several others, we cant simply buy wipers that fit our fleetwood RVs or many other brands. Usually you look up the vehicle make and model and then bam, you got it. Sometimes you maybe didnt get the right kit (conventional vs. hook vs. pin, etc) but its usually easy. Well, not so for these. It is a "bayonet" style blade holder however its not the automotive size, its larger. Anyway, this is the adapter from napa, Trico may also have it. I hope this helps, see you later internet.
Neither of these links are affiliated in any way, I am simply sharing them. You no, trying to help you.
Napa: www.napaonline.com/en/p/WIP69...
Dudes video on how to adapt the adapter for cars: • Fleetwood Bounder 36s ...