For adding additional cubic capacity or as an outlet box for surface conduit. Twelve 1/2 in side knockouts, drawn metal, suitable for use in 2 hrs fire rated walls. 4 in square x 1-1/2 in D, 22.5 cu-in capacity. UL listed.
| Color | : | Silver |
| Height | : | 4 in |
| Material | : | Metal |
| Width | : | 4 in |
| Number of Knockouts | : | 12 |
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