4" Octagon Ceiling Box with Bar Hanger, Metallic. Depth: 1-1/2". End Knockouts: (2) 1/2" . Adjustable Length: 16" to 24". Fan Weight: 70 lbs. Fixture Weight: 150 lbs. Cubic Inches: 15.5".
- Knockout Diameter: 1/2 in
- Mounting: Bracket
- Mounting: Screw On
- Mounting: Nail On
- Depth: 1 1/2 in
- Cubic Inches: 15.500 in³