Commercial Electric 1/2 inch Weatherproof Electrical Box Closure Plugs, Gray, (4-Pack)

These weatherproof closure plugs help keep moisture from the electrical wiring by closing unused holes in weatherproof boxes, extension rings or covers. They fit 1/2 in. knockouts and are of zinc die-cast construction. These closure plugs are cULus listed.

• For closure of 1/2-in threaded knockouts
• For threaded knockouts in a WP box, cover or extension ring
• Zinc die-cast construction