https://www.legrand.us/wire-and-cable-management/floor-boxes/concrete-floor-boxes/cover-plate/p/830cktcal-1-2
Cover Plate | Concrete Floor Boxes | Floor Boxes | Wire and Cable Management
Brushed aluminum power or communications cover plate, 2'' (51mm) and 1/2'' (12.7mm) plugs. Acceptable for use with threaded conduit when passing through power...
concrete floor boxeswire and cablecover platemanagement