Suncourt In-Line Duct Air Booster Fan is designed to solve air delivery problems efficiently without requiring major system modifications or high expenses. I for boosting airflow to rooms that tend to be too hot or too cold, it also serves well for general ventilation of clean indoor air. This fan fits both flexible and rigid ducts and features one end with a crimp and bead design for easy installation. Its sleeve bearings allow for installation at almost any angle, while the tip-throw, balanced blade ensures effective air movement. The thermally protected Class B motor includes a large oil reservoir, contributing to quiet operation and long life. Constructed from corrosion-resistant metal, this fan is suitable for use in environments with temperatures not exceeding 140 degrees. It comes with an attached power cord and installation screws and is UL for safety. Available in multiple sizes with varying flow rates, the Suncourt In-Line Duct Air Booster Fan reliable performance backed by a one-year limited warranty. Model Number: DB204C