One of the first modifications to my RV was Vent Covers.. I think I have Camco's on the bathroom vents and I have a Fantastic On the Fantastic Fan
No problems with either covers now.
Could be worse
When I was in Vegas a couple flew in. the dealer picked 'em up at the airport and gave 'em keys to a brand new Class C.. the vent cover did not last 24 hours nor the Winegard Flying Saucer... (Accident damage) . They tried to park in a garage and the chained height limit pipe caught the flying saucer rippped it off then flew up and down onto the vent cover smashing it.
