[QUOTE=EMD_Driver;98779]Hi Dave and Lisa..
I googled the term and got a few hits...
Heng's Elixir Vent Escape Hatch, 13x20, Rv, Heng's at Sportsman's Guide
RV Escape Hatches, Trailer Hatch, Elixir Hatches
RV Escape Hatch Exit Vent Store
You will probably have to remove the existing hatch and measure the opening itself. That way, you will get exactly what you need. You may also be able to find the lid by itself.
Thanks for getting us on the right track. I didn't even know the name of the part, that we were trying to track down. The last link you sent us had the best price, I will call to get a price on shipping from Ca. to Oh. The screen is fine just need the LID.