Southwire Bronze 5 Hole 4" Round Box is designed for reliable and durable electrical installations, ing a 17.2 cubic inch capacity for ample wiring space. Constructed from copper- aluminum with a premium powder coat finish, this round box includes 4 closure plugs and grounding screws. The 1/2" or 3/4" threaded hub supports versatile wall or ceiling mounting. UL listed for wet locations, this box is for use with all round outlet box and lampholder covers. Installation instructions are included for hassle- setup, making it i for both residential and commercial use. Model Number: WRB1550B-UPC