225$ for a ...roof vent is a luxury to me. My old roof vent(alum.) looked ugly, leaks
when it's heavy pour due to housing's corners(plastic) cracked up. Previous owner put heavy black sealant(kind of shingle seals) and the look was total mess. I took it out, cleaned all surface around, take down the vent, sand it, repaint it. Fixing corners` cracks with F.G resin When put it back with bigger rivets with a black butan bead b/t vent and trailer roof (when it's hot 29 Celcius degree). I even put extra aluminum mouldings on top of the edges before rivet it. The outcome looked a lot of better and thru the last few days with non-stop rain, I went inside and look up, no leak at all. I might be....lucky. Just look at my photos before and I will post new photos, soon because it's dark right now.