Eight 1/2 in and four TKO conduit knockouts (sides). Two 1/2 in and two TKO conduit knockouts (bottom). 30.3 cubic inch capacity. UL listed, File E195978, U.L. 514-A, suitable for use without a bonding jumper in circuits above or below 250 volts. Combinationcover screw heads provide for faster mudring/cover installation. No bracket, installed in ceilings or walls for lighting fixtures or receptacles. UPC bar code.