Masonry Box, 1-Gang, Non-Gangable, Welded, Metallic. Depth: 2-1/2". Side Knockouts: (6) 1/2" & 3/4" Concentric KOs. Bottom Knockouts: (2) 1/2" & 3/4" Concentric KOs. Cubic Inches: 15.5".
- Knockout Diameter: 1/2 in
- Knockout Diameter: 3/4 in
- Mounting: Screw On
- Gangs: 1
- Depth: 2 1/2 in
- Mounting: Nail On
- Cubic Inches: 15.500 in³