Hubbell 4″ Octagon Box Extension – 2×1/2″ + 2×3/4″ Knockouts

Description

Extension rings provide a means for adding additional cubic capacity to a box or as an outlet box for surface conduit. Not designed for ceiling fan support. Combination screw heads allow for fast cover or fixture installation. 1-1/2″ deep. 50 lbs. max. recommended support load

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