Cast Device Box, FD, Deep Box Type, Capacity (Cu.-In.) 25.0, Color Gray, Depth (In.) 2.69, Length (In.) 4.56, Width (In.) 2.81, Description/Special Features Corrosion-Resistant, For Indoor and Outdoor Installations, Hub (In.) 3/4, Material of Construction Malleable Iron, Number of Inlets 1, Standards UL 514A, C22.2 18.1 Cast Device Boxes and CoversBoxes feature accurately tapped and tapered threads for tight, rigid joints and ground continuity. A smooth, rounded integral bushing in each hub protects conductor insulation. Openings provide room for making splices and for general maintenance. Accommodate wiring devices like switches and receptacles. Corrosion resistant. Covers for Dry and Wet Locations mount directly on box. Covers for Wet Locations feature a gasket that seals around plug keeping dirt and moisture out.