Hubbell 4″ Square Box Extension – 8×1/2″ + 4×3/4″ Knockouts

Description

Extension rings provide a means for adding additional cubic capacity or as an outlet box for surface conduit. Combination screw heads provide for faster installation. 1-1/2″ deep

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Quality Hubbell 4 In. Square Extension With Eight 1-2 In. And Four 3-4 In. Knockouts for your collection.