4PK 1/2" WP Closure Plugs

Sigma Engineered Solutions Round Die-Cast Zinc 1/2 in. Weatherproof Closure Plug

Sigma's weatherproof closure plugs help keep moisture from the electrical wiring by closing unused holes in weatherproof boxes, extension rings or covers.
For closure of 1/2-in threaded knockouts in a weatherproof box or cover Includes four 1/2" closure plugs
Zinc die-cast construction
Product is cULus listed