Whole House Window Fan 20 Inch Exhaust Supply 3 Speed 120V Steel Blades
Number of Blades: 3. Fan RPM: 1600/1450/1100. Motor Type: Single Phase. Blade Dia.: 20 in. Item: Whole House Fan. Mounting Location: Window. Agency Compliance: ETL and OSHA Compliant Guards; Tested to AMCA standard 230.99.