The Fantech REC 10XL Curb Roof Mount 10" Centrifugal Duct Fan is designed for superior ventilation in both residential and commercial applications. With an impressive airflow capacity of 752 CFM, this roof-mounted fan ensures effective air circulation while being mounted on the exterior of your building. Ideal for those seeking reliable and efficient ventilation solutions, the REC 10XL combines high performance with a compact design, making it perfect for various installation needs.