Raco 661 Handy Box 13 cu-in 1-Gang 8-Knockout 1/2 in Knockout Galvanized Steel Gray Bracket Mounting

Three 1/2 in knockouts (sides). 4 in x 2 in x 1-7/8 in D. 13 cu-in capacity. "A" style bracket for wood or metal, positions handy box securely against face and side of stud. Acceptable for use in 2 hrs rated walls. UL listed.