Snap-in knockout bushing provides a smooth, rounded knockout openings in metal boxes or enclosures for 1/2 inch rigid conduit. Knockout bushing is used with 0.875 inch knockouts. Knockout bushing is a high impact polycarbonate.
High Impact Strength
Self-Extinguishing and Non-Dripping per UL 94
Snaps into Outlet Box, Switch Box or Other Enclosure