The RAB Design C100 Round Cast Zinc Cover is a reliable, heavy-duty solution for protecting electrical box openings on residential, commercial, and industrial job sites. Built from die-cast zinc with a raw zinc finish, this single-hole cover is engineered to withstand the demands of professional installations. Ideal for professional electricians and contractors, it fits standard round boxes and accommodates a 1/2" conduit knockout — making it a go-to component for conduit runs, junction box closures, and rough-in work. Includes a cork gasket for a secure, weather-resistant seal, and is rated for damp locations, giving you confidence in a wide range of installation environments.

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