All ActivityMost RecentMost LikesSolutionsRe: What did you do to your Class C MH today???Replaced the plastic flapper on the outside vent from the rangehood exhaust. This was the second one that broke off in two years so I had my local metal shop make a better one from metal. I painted it and even added a rubber gasket to help keep out cold since I travel all year in COlorado weather. Works great.