The Elta SWC35/40 wall cowl provides protection for fan openings against prevailing weather conditions while maintaining low airflow resistance. Constructed from glass-reinforced polyester (GRP), it is finished in goose wing grey with the colour embedded into the gel coat for enhanced durability. The cowl includes an integral bird screen made of galvanised mesh to prevent birds from entering the system. Suitable for 350mm and 400mm fan openings, this wall cowl ensures effective protection and efficient airflow.