4" Octagon Ceiling Box with Bar Hanger, Metallic. Depth: 2-1/8".Side Knockouts: (4) 1/2". Bottom Knockouts: (3) 1/2. Adjustable Length: 8" to 16". Fan Weight: 70 lbs. Fixture Weight: 90 lbs. Cubic Inches: 21.5". For use with Ceiling Tiles. Includes: (2) F
- Knockout Diameter: 1/2 in
- Mounting: Bracket
- Mounting: Screw On
- Depth: 2 1/8 in
- Mounting: Nail On
- Cubic Inches: 21.500 in³