GRF Flanged Conduit Outlet Box, Explosion-Proof, Dust-Ignitionproof, Aluminum Iron, Unilet, GRFX Hub Type. Includes: Internal Ground Screw and O-Ring, Internally Threaded Surface Cover with 3.38 Inch Opening, 18.0 Cubic Inches and (4) 3/4 Inch Threaded Hubs. For use with Threaded Metal Conduit.
- Diameter: 3/4 in
- Material: Aluminum
- Material: Aluminum
- Cubic Inches: 18 in³