
GR Type Conduit Outlet Box, Explosion-Proof, Dust-Ignitionproof, Malleable Iron, Unilet, GRC Hub Type. Includes: Internal Ground Screw and O-Ring, Internally Threaded Surface Cover with 3.38" Opening, 18 Cubic Inches and (2) 1/2" Threaded Hubs. For use with Threaded Metal Conduit.
Appleton explosionproof and dust-ignitionproof GR, GRF and GRTS conduit outlet boxes are furnished with internal ground screw and O-ring. They are ideal for indoor and outdoor classified locations. These corrosion-resistant outlet boxes provide access for maintenance, connecting conduit and changing conduit direction. GRTS Series has factory-installed drain and terminal block options.