rainproof louver negative pressure exhaust fan

강철 케이스 사각 환기 팬 방수 외부 루버 음압 배기 팬

FAB Series Standard Square Ventilation Fan * The FAB series square ventilation fan features an energy-saving, low-noise impeller design and a high-strength steel casing with anti-rust spray treatment. * The fan is equipped with external louvers for excellent rainproof performance, making it suitable ...