HUBBELL Extension Ring, 4 Knockouts, (2) 1/2 Inch, (2) 3/4 Inch Side Knockout, 4 Inch Length, 4 Inch Width, 1-1/2 Inch Depth, Octagon, Ceiling Mount, 15.5 cu-Inch, Drawn Steel, Silver, Pre-Galvanized
| Color | : | Silver |
| Depth | : | 1-1/2 Inch |
| Finish | : | Pre-Galvanized |
| Knockout Size | : | (2) 1/2 Inch, (2) 3/4 Inch Side |
| Length | : | 4 Inch |
| Material | : | Drawn Steel |
| Mounting Type | : | Ceiling |
| Nominal Capacity | : | 15.5 cu-Inch |
| Number of Knockouts | : | 4 |
| Shape | : | Octagon |
| Warranty | : | 1 Year on Material and Workmanship |
| Width | : | 4 Inch |
- Combination screw heads provide for faster installation
- Fixture bar hanger allows box to be located anywhere along length of bar
- Acceptable for use in 2 hr rated walls and ceilings
- 50 lb static support load
Standard/Approvals: UL 514-A File E195978, CSA File LR-1082
Application: For adding additional cubic capacity to a box or as an outlet box for surface conduit
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