Camping Trailer Vented Bumper Cover

thingiverse

When we bought our trailer the bumper was open on both sides. Since we are storing the black water hose in the bumper, we needed a cover that would keep it in there, but didn't want something that when we took the cover off were knocked back by the smell. So I designed some vented covers. I designed the walls to slope outward so the further you push the cover on, the tighter it gets. at the most narrow area it's 93mm, at the widest it's 97mm.