Review on Efficient Camco RV Roof Vent Cover: Optimal Air Ventilation for Your RV, Rain or Shine by Michael Moonin

What's not to like? Each install literally took 15-20 minutes (actually the first one took about 30 minutes because I had to remove the old, damaged maxxair cover). They're slightly lower in profile, much more aerodynamic, and the entire top easily opens for a full clean (not just the back). Yes, because they are lower, the vent only opens about 3/4; that's still enough for full airflow, and they're vented on both the sides and back. Yes, they don't have a screen over the vents; So what? Your roof vents already have grilles, so adding an extra grille to the lid would be overkill. 2 parts made of different plastics; The base is all white and the top is slightly opaque to let in more light. Both parts feel thick and strong; I hope they survive the scorching Southern California sun. In general I am very happy with them.