Description
The CM-4CB-F 4" Fan Rated Octagon Concrete Ring is a durable and versatile electrical box designed for easy installation. Constructed from 16 gauge galvanized steel, it features 1/2", 3/4", and 1” side knockouts and mounting tabs. With a diameter, length, width, and depth of 4 inches, this UL-standard concrete box weighs 1.03 pounds and is fan rated. It includes side knockouts (8) 1/2" (4) MKO and bottom knockouts (2) 1/2" (2) MKO, making it ideal for various electrical applications.










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