4 Inch Octagon Ceiling Box with Bar Hanger, Metallic, 1-1/2 Inch Deep, Side Knockouts: (3) 1/2 Inch & (2) Priouts, Bottom Knockouts (2) 1/2 Inch, Adjustable Length: 16 to 24 Inch. Fan Weight 70 lbs, Fixture Weight 110 lbs, 16 Cubic Inches
- Knockout Diameter: 1/2 in
- Mounting: Bracket
- Mounting: Screw On
- Material: Steel
- Mounting: Nail On
- Depth: 1 1/2 in
- Cubic Inches: 16 in³