Round, Adjustable Floor Box, Steel, Depth: 2-7/16". Cubic Inches: 29.5". Knockouts: Sides: (4) 1/2" & (4) 3/4", Bottom: (2) 1/2" & (2) 3/4". Adjustments: 1-3/4" (Before Pour) or 1/2" (After Pour)
- Knockout Diameter: 1/2 in
- Knockout Diameter: 3/4 in
- Depth: 2 7/16 in
- Material: Steel
- Cubic Inches: 29.500 in³