• Covers unused 1 in. knockout holes in steel electrical boxes
• Steel construction with zinc plating for corrosion resistance
• Snap-in installation -- no tools required
• Prevents debris and pests from entering through open knockouts
• For indoor use in outlet boxes, junction boxes, and metal enclosures
• 2 seals per package

Halex knockout seals provide a quick, clean way to cover unused 1 in. knockout openings in steel outlet boxes, junction boxes, conduit bodies, and other metal electrical enclosures. The zinc-plated steel construction resists corrosion in indoor environments. Simply snap the seal into the open knockout to prevent debris, dust, and pests from entering the enclosure. Each package includes 2 seals.