Raco 703 Round 1/2 KO Box Cover Raco 703 features: -round blank box cover with knockout Ceiling pans are used in the installation of Ceiling or wall Lighting Fixtures The product has wallplates Boxes and pans are used in the installation of ceiling or wall lighting fixtures Combination screw heads provide for faster installation 1/2" Knock Out Seal Returns will not be honored on this closeout item