12v RV Roof Fan Vent 14'' 3-Speed Reversible Manual Lift Trailer Camper Van Lid - $80 (Simi Valley)

Powerful and Efficient: This RV roof fan provides a fantastic air circulation for your RV.
And it moves a lot of air but only use little power because of this durable and stable can motor.
QUIET: RVLOVENT 12V RV roof vent can intake or exhaust fresh air immediately and stay cool without distracting noise.
3-SPEED FAN REVERSIBLE : The fan can be operated in Reverse/Forward mode by reversed the wiring.
Fan speeds available in Low, Medium, Max on forward/reverse direction and Medium, Max on reverse/forward direction.
EASY-TO-INSTALL: Fits all rough 14'' inch x 14'' inch roof openings.
Built in fuse for circuit protection and 2 extra 5A slow fuse in the package.
An extra screen included.
Screws and white interior garnish included.