Leisure Coachworks RV Roof Vent Fan Exhaust 12V Adjustable Multi 6 Speed Reversible Manual Riser with Smoked Lid

Easily control opening and closing of the hood with manual knob operation and choose the air volume at will. Reversible 6 Speed fan can either push stale air out or pull fresh air into your RV, camper, or enclosed trailer Control Fan direction and speed with control panel on Vent. 10 Blade fan for better air flow. Manual knob vent lid riser. White, high profile base and Smoked Vent Lid Compatible with a 2" to 4-3/4" thick roof Fits standard 14 inch x 14 inch openings. Product Dimensions 16.5 x 16.5 x 7.25 inches Cut Out Dimensions: 13.39 X 13.39 12 Volts CFM: 177~1236