Turbo 5 Black Small Low Profile Rotating Roof Vent for Vans This low profile wind-powered rotary roof ventilator for vans provides ventilation for vans, buses, dog vans, horse boxes, ambulances, 4x4s, boats etc. This small van roof vent has been designed to protrude a maximum of 59.5mm above the vehicle's roof and low enough to fit under most roof mounted carrying racks, the 8 vaned air scoop rotates freely while the vehicle is in motion drawing out stale air. This rotary van roof vent is the perfect solution for ventilating your van. This item is provided with 2 Year warranty. Small Low Profile Rotary Vent for Vans (Black) features Discrete and small low-profile van roof vent. Cost-effective solution to the problems of excess heat and condensation in vans. Low profile vents stands only 59.5mm high.