High speed direct drive centrifugal upblowing exhaust fan for restaurant grease and general ventilation applications. Mounted on roofs or walls, exhaust fan features a high-quality, lightweight, corrosion-resistant construction aluminum. The canopy exhaust fan design to maximize airflow 1700CFM/1900-2600CFM/3500CFM; 186.5W/373W/746W, 110V, SAA Listed. The roof exhaust fan connects to the kitchen vent hood through the ductwork system to extract the fumes, heat and grease from the kitchen to the outside of the building. 30-day warranty. Technical support is available after purchase. As all fans are custom made, returns or exchanges are not accepted.