Handy Box Extension Ring, Size: 4" x 2-1/8", Welded, Metallic. Depth: 1-7/8". Side Knockouts: (6) 1/2". End Knockouts: (2) 1/2". Cubic Inches: 11.5"
- Depth: 1 7/8 in
- Knockout Diameter: 1/2 in
- Material: Steel
- Cubic Inches: 11.500 in³
Handy Box Extension Ring, Size: 4" x 2-1/8", Welded, Metallic. Depth: 1-7/8". Side Knockouts: (6) 1/2". End Knockouts: (2) 1/2". Cubic Inches: 11.5"