Halex 1 in. x 3/4 in. Rigid Conduit Reducing Washer (2-Pack)

1 in. x 3/4 in. Rigid or IMC Conduit Reducing Washers (2-Pack) effectively reduce the size of the knockout in a steel outlet box or other metal enclosure. Each knockout requires 2 of these galvanized washers. Trade sizes are clearly marked on each washer.