3-1/2 in. 2-Piece Knockout Seal

Close off unused openings in junction boxes or panel boards with RACO® knockout seals. Zinc steel seals provide installation integrity. 2-piece design makes installation easy.

• 2-piece design is lightweight and easy to use
• Zinc-electroplated for added corrosion protection
• UL Listed
• Available in trade sizes 2-1/2 in. - 4 in.
• Includes 2 discs, bolt and nut