4 in. Square Welded Extension Ring, 2-1/8 in. Deep with 1/2 in. and 3/4 in. KO's (25-Pack)
Extension Rings are manufactured from durable pre-galvanized steel, and are designed to house and protect electrical wiring, switches, receptacles, and to support light fixtures. All steel octagon boxes are UL listed and acceptable for use in 2-hour fire rated walls and ceilings. 8-32 fixture mounting screws are assembled.
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- Box/Conduit/Fitting Accessory
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EXPRESS DELIVERY FROM STORE:
Express Delivery from Store is available for items currently in stock at a The Home Depot store within a delivery ZIP code. A driver from a local store will deliver the item(s).
Outside Delivery: Service includes delivery to area outside the house which is accessible by delivery equipment.
Threshold Delivery: Service includes delivery across your first doorway or threshold (ie. garage, backyard, deck, first room of the home).
This item cannot be shipped to the following state(s): AK,GU,HI,PR,VI