4" Octagon Ceiling Box with Bar Hanger, Metallic. Depth: 2-1/8"..Side Knockouts: (4) 1/2". Bottom Knockouts: (3) 1/2 Adjustable Length: 16" to 24". Fan Weight: 35 lbs. Fixture Weight: 50 lbs. Cubic Inches: 21.5".
- Knockout Diameter: 1/2 in
- Mounting: Bracket
- Mounting: Screw On
- Depth: 2 1/8 in
- Mounting: Nail On
- Standards: California Proposition 65
- Cubic Inches: 21.500 in³