Low Profile Spinning Van Roof Vent Air Extractor Ventilator - BLACK

The UK's Leading rotary roof vent, Providing air flow for vans, trucks, containers, horse, agricultural livestock transporters & trailers. - Low profile design, yet flows double the air of other vents, and air flow can be completely controlled via ADJUSTABLE internal shutter - Easy and quick to install threaded mounting plate - simply cut the hole, drop the vent into the hole and tighten up the main locking ring, and features a full internal shut off cover surround and plate, allowing you to vary the air flow in to your vehicle or shut it off completely. - The internal shut off surround makes a nice neat finish to the inside of your vehicle, not a rough hole showing like other vents which to not have such surround, and sandwiches the roof skin between the upper and lower parts of the vent for increased stability.- Complete with waterproof silicone rubber gasket, and can be silicone sealed if required for curved roofs. - Full stainless steel center spindle and bearings, and a full stainless steel drive quiet rotor mechanism. - You can cut an 94mm to 95mm mounting hole, and the 140mm flange diameter provides stability at high rpms and stops resonance like smaller inner diameter vents. - Can flow over 5 cubic meters of air per minute at full road speed - Supplied with easy to follow installation instructions - Suitable for all thicknesses of roof. - Superior Air flow and low noise. - OVERALL DIAMETER 238mm - 79mm total height - Hole diameter to be cut into roof is 94mm to 95mm.