As Teresa pointed out, Camping World has a couple covers, but they are pretty vague about the size. In fact, one of the Camping World product reviewers said that he got one and it was HUGE.
These particular covers are made by Adco. Their Aqua-Shed covers for pop-ups are seen at
http://www.adcocovers.com/sfs_aqua-shed_pop_ups.htm, and the real sizes are given there. There is a separate page for Hi-Lo covers, but if I read correctly, they would be too big for all but the largest TMs.
I am a bit concerned about the site's statement that these covers have "moderate UV stability". Does that mean they will disintegrate after a summer in the sun? Anyone got any experience?
Teresa, what size did you buy from CampingWorld for your 2720SL?
Bill