Camping World Master Catalog 2003 - Made by Aqua Shed. Model number 22071 "Hi-Lo Cover" (pg 60) in their catalog or use the model number on their website under "Search".
www.campingworld.com Member price was $179. It is for "oversized pop-ups 20' - 22'6" The fabric is supposed to repel dirt, moisture and UV rays. Anything to protect our TM investment!