RACO® Extension Ring, Square, 12 Knockouts, (8) 1/2 in and (4) 3/4 in Knockouts, Steel, Pre-Galvanized, 4 in H x 4 in W x 1-1/2 in D
- 22.5 Cubic inch capacity
- UL Listed
- Extensions rings provide a means for adding additional cubic capacity to a box or as an outlet box for surface conduit
- Acceptable for use in 2-hour rated walls and ceilings
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Specification Sheet