|Crystal. 28cm x 28cm rooflight, without fan, ideal for airing small spaces. Made with superior quality impact & UV-resistant materials. Due to an internal installation system, it is not necessary to drill holes in the vehicle. Supplied with permanent air flow ventilation system & mosquito screen. The external aerodynamic cover guarantees a watertight system. For installation on roof with depths of max 8.5cm, the optional extension kit can be used.