This new, streamlined Vent Cover XLT features an aerodynamic design and a durable construction. The oversized vent cover is UV resistant with angled louvers that allow for more air flow than standard vent covers. It also allows more room to open and close your RV vent lid, allowing you to have better air flow rain or shine. Works great with fan powered vents. Camco Vent Cover XLT has a pivoting grate which allows for easy access to the inside of the cover, making it easy to clean. Fits most mounting brackets. Measures 19. 5” W x 25. 75” D x 10. 5" H and comes in white and black, patent pending. Oversized vent cover and angled louvers allows more air flow than standard vent covers Works great with fan powered vents and fits most style mounting brackets Mounting hardware included; Mounts to existing 14” x 14” roof vents Measures 19. 5” W x 25. 75” D x 10. 5" H; Durable, UV-resistant material Pivoting grate opens for full access to the interior of the vent, making cleaning easier Patented MODEL NO - 40456