I thought the Maxxair II covers provided better ventilation and were much better looking so I installed them, used the silver color to shade the light coming from the ceiling, especially the bedroom.
The Ultra-Breeze covers let the vent lids open a little more completely, but I still think we get better ventilation out the Maxxair covers because of their wrap-around design. They can stay open in rain and towing down the road, we like them.
Doug and Cheryl
2012 FC RB, Michelin 16, ProPride 1400
2016 Ram 1500 Laramie Crew Cab 4X4 Ecodiesel 3.92 axles
The Truth is More Important Than the Facts