Contractor Pack Housing.
Air King Contractor Housing pack of 2. Contractor Housing packs are the metal housing that holds the fan and grill. Because there can be a long delay after the rough-in contractor packs allow the builder to install the housing separate from the motor, blade and grill to keep from loosing the mechanism operating parts. After the housing is installed and the drywall is completed the motor etc. is installed.4-Inch duct, Housing dimensions: 7-7/8-Inch H, 10-7/8-Inch W, 9-3/8-Inch D. Contains 2 Housings. Complete with hanging brackets. Use with model AKF100T-motor, blade grill.