Portable blower ventilator fans 16 ft ducting for 12" (30.5 cm) diameter fan ducting. Quickly transforms blower fan (not included) to an exhaust fan with hassle-free and flexible ducting. Ducts include quick-connect nylon rope for simple blower attachment. Ducts are made with excellent quality materials and endure -20~180℉ temperature (-28~82℃).
