For mounting roof fans and ventilation hoods on corrugated roofs, for RD roof fans with a slope of up to 25°. Weather-resistant and corrosion-free construction made of glass-fiber-reinforced polyester with a low weight. Shatter-proof. Low heat transfer value. Shaft spacing 177 mm (profile 5). Incl. fastening screws, profile rubbers and sealing between the base and base plate.