Unbranded 4 in. Square Drawn Extension Ring 1-1/2 in. D with 1/2 and 3/4 in. KO's

Manufactured from durable pre-galvanized steel. Designed to house and protect electrical wiring, switches, receptacles, and to support light fixtures. UL listed and acceptable for use in 2-hour fire rated walls and ceilings. 8-32 fixture mounting screws assembled.4 in. square x 1-1/2 in. DDrawn steel constructionSupplied with 8-1/2 in. and 4-3/4 in. knockoutsCombination Phillips/slotted screw heads22.5 cu. in. capacityNote: product may vary by store