Plasti-Bond 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" thick. STTTB style hubs perform the same function for unlimited wall thicknesses, (furnished without nipples).
Product Specification
- 3/4 inch conduit knockout hub
- 40 mil gray PVC coated for corrosion resistance
- Made from durable ferrous metal construction
- Provides secure connections for electrical conduit systems
- Suitable for both indoor and outdoor use