4" Octagon Box, Drawn, Metallic. Depth: 2-1/8". Side Knockouts: (4) 1/2". Bottom Knockouts: (5) 1/2". Cubic Inches: 21.5".
- Knockout Diameter: 1/2 in
- Mounting: Screw On
- Material: Steel
- Depth: 2 1/8 in
- Mounting: Nail On
- Diameter: 4 in
- Cubic Inches: 21.500 in³
- Number of Knockouts: 9
- Knockouts: Yes