Of an acorn falling from tree in campground and blowing a hole through lid on vent fan in bathroom. Well that is what just happend to me. How hard are those to replace? It has the brand name Ventline ...
Buy a lottery ticket, with those odds. Ventline replacement covers can be found at Camping World and most RV dealers.They are not hard to replace. Suggest that you bring what is left of your lid to get the right replacement cover as there are several to choose from under the Ventline brand.