Bests & Worsts Reviews from Amazon

This is a comparison between the Camco cover and the Maxxair unit. I have 4 Camco units currently installed on trailers and RV's, I have not had an issue with any of them thus far. One has been in direct sunlight for 3 years and is still solid. However, the reviews led me to look at the Maxxair unit, so I got both to do a side by side comparison. Functionally they serve the same purpose, if you don't have them you need them, great for keeping the rain out. Also a good backup cover, I've found my crank up covers missing on more than one occasion. They both install the same way. The Camco unit has a screen that removes from the outside, the Maxxair unit is attached on the inside, meaning you have to remove the 4 mounting bolts to clean your vent cover. That's really the only reason you need access inside the unit once installed. Getting on the roof to pull out the screens and clean the covers isn't on my yearly maintenance list so it's not an issue for me. Out of the box the Maxxair unit is stiffer either by design or material or thickness. The first two photos are the flange thickness in mm. The Maxxair unit is 3.04, the Camco is 1.44. This means the flange is twice as thick on the Maxxair which is a positive as the flange area seems to be where the Camco units fail. Next I weighed them, the Maxxair is about 2.5 ounces heavier which really doesn't support the idea that the whole casting is thicker. However, someone seems to have given more thought to the design and added extra material at stress points, and the extra contours and ribs in the mold add stiffness. What levels the playing field is how much UV stabilizer is in the plastic which you are left to infer by the warranty period. The other photos are side by side. I'm not going to replace my Camco units preemptively, but if they fail I'll likely use the Maxxair.