Looking for Answers about TPI Shutter-Mounted Direct Drive Exhaust Fan - 20in., Model# CE-20-DS?

The TPI Shutter-Mounted Direct Drive Exhaust Fan is designed to exhaust stale air from rooms, barns, garages or small enclosed work areas. Mounts from the inside of the wall, avoiding the time and expense of dismantling and replacing siding. Totally enclosed 120V direct drive motor has 2 speeds and is permanently lubricated. U.S.A. Fan Diameter (in.): 20, Air Delivery (CFM): 2,380/2,925, Volts: 120, Speeds (qty.): 2, Dimensions L x W x H (in.): 23 x 10 x 23, Needs to be Hardwired: Yes For new or existing construction 2-speed, 2925/2380 CFM enclosed motor ensures rapid ventilation Permanently lubricated When fan is turned on, shutter automatically opens; when fan is turned off, shutter automatically closes to seal out the elements Fan is isolated from shutters with rubber pads to eliminate vibration and noise Includes junction box for hardwiring