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Raco® Box Extension Ring, 4 Knockouts, 1/2 Inch Knockout, 4 Inch Dia, 3.63 Inch Length, 1-1/2 Inch Depth, Octagon, Ceiling Mount, 15.5 cu-Inch, Metallic
| Number of Knockouts | : | 4 |
| Knockout Size | : | 1/2 Inch |
| Diameter | : | 4 Inch |
| Length | : | 3.63 Inch |
| Depth | : | 1-1/2 Inch |
| Shape | : | Octagon |
| Mounting Type | : | Ceiling |
| Nominal Capacity | : | 15.5 cu-Inch |
| Material | : | Metallic |
- Combo screw heads provided
- For installing ceiling or wall lighting fixtures
Standard/Approvals: UL Listed, CSA Certified