Part Number: 781381445108 <br> Part: Appleton GRT150 Conduit Outlet Box, Type GRT, (3) 1-1/2" Hubs, Malleable <br> GR Type Conduit Outlet Box, Explosionproof, Dust-Ignitionproof, Malleable Iron, Unilet, GRT Hub Type. Includes: Internal Ground Screw and O-Ring, Internally Threaded Surface Cover with 4.88" Opening, 72 Cubic Inches and (3) 1-1/2" Threaded Hubs. For use with Threaded Metal Conduit. <br> Diameter:1 1/2 in <br> Material:Malleable Iron, Iron <br> Type:Conduit Outlet Box, Outlet Box <br> Cubic Inches:72 in <br> Also known as: 781381445108, APPGRT150, Appleton, GRT150, Type - T, Conduit Outlet Boxes, Boxes - Explosionproof, Boxes, Enclosures <br> Equivalent to: </p><ul><li>Appleton</li><li>GRT150</li><li>781381445108</li></ul>