4" Square, Red Extension Ring, Drawn, Metallic. Depth: 1-1/2". Side Knockouts: (8) 1/2" & (4) 3/4". Cubic Inches: 22.5".
- Color: Red
- Knockout Diameter: 1/2 in
- Knockout Diameter: 3/4 in
- Material: Steel
- Color: Red
- Depth: 1 1/2 in
- Color: Red
- Cubic Inches: 22.500 in³