ULTRAFLOW High Output Rotary Van Roof Vent Wind Driven Rotating Spinning Ventilator Fan BLACK Camper Bus 4x4

High output air extraction for medium to large vans, superior cooling compared to smaller vents. High quality precision bearings - Ultra Quiet Suitable for roof thicknesses from 1 - 20mm - Super Easy Installation, simply put the vent through the hole, attached the threaded base and tighten Fully adjustable variable air flow in and out of the vehicle using adjustable internal shut off plate., Weight: 2.2266688462 Pounds, Manufacturer: FLOWROTOR