Plasti-Bond REDH2OT® PRST8 Type ST Knockout Hub, 3 in For Use With: Sheet Metal Electrical Enclosure, Steel, PVC/Urethane Coated

Plasti-Bond REDH2OT ST style knockout hubs are used to terminate conduit runs through the wall of a sheet metal electrical enclosure. they are available with or without grounding lug. STTB style hubs are "Through-Bulkhead" fittings used to pass conduit runs through firewalls or bulkheads up to 1/8 in thick. STTTB style hubs perform the same function for unlimited wall thicknesses, (furnished without nipples).