You are most likely asking about the ones above the dinette and above the sink area. We have a 2014 3051.
Personally I couldn’t find anything so I bought a sewing machine and made my own.
Work great - three layers - reflectix, microwave safe material to stop even more heat, then layer of material to dress them up. Sewed a layer of Velcro around all sides on the skylight side and used command strips to hold in place.
Used them last season and make a huge difference in the temp inside the coach.
Side toward skylight
Look from inside.
Lynn & Dennis
Nights Camped 2017 - 35 / 2018 - 15
2014 3051S - First RV for us
2018 Hyundai Elantra Sport Toad
2015 Harley CVO (retirement bike
2015 Challenger ( Wife's Toy)