Saw a video on youtube where an RV owner replaced the frame endcaps with Camcos.
http://www.amazon.com/Camco-40325-In.../dp/B00C5RB03W
These are designed to keep wasps and other larger insects out. Do our TMs have endcaps and has anyone used the Camco's if we do? I know we can just put solid endcaps on but I wonder about not having airflow ...