The Elta SWC25/31 wall cowl is designed to protect fan openings from adverse weather conditions while minimizing airflow resistance. Made from glass-reinforced polyester (GRP), it is finished in goose wing grey with the colour impregnated into the gel coat for durability. The cowl comes complete with an integral galvanised mesh bird screen to prevent bird ingress. Suitable for 250mm and 315mm fan openings, this accessory ensures reliable protection and optimal airflow performance.