Sometimes, you just need some fresh air, especially on the road! With this rv vent fan Whether you're camping, trucking, or traveling the country, this Manual Roof Vent Fan from Hike Crew provides the circulation your RV needs with rv fans 12 volt roof to keep everyone safe, cool, and comfortable, thanks to the camper vent. Designed for 11" x 11" roof openings, the system features a variety of convenient features, so occupants can enjoy their small space without worrying about maintaining temperature, moisture, and other environmental factors. the fan pulls in fresh air from outside for effective circulation; built-in 2-speed exhaust expels hot, stuffy air from the cabin when temperatures get too high; and a simple open/close handle makes operating the system an absolute breeze. Ready to enjoy the coolest, cleanest, most breathable RV in the park? Welcome aboard the best in recreational ventilation. Add a Hike Crew Manual Roof Vent Fan to your cart today!.