9.0 Cu. In. Single gang electrical box for use with nonmeatllic sheathed cable - Machine tapped device holes, rectangular exterior, rigid hard box construction, no distortion with high temperatures, shatter resistant with low temperatures - Old work residential construction 2 HR fire resistive walls and ceilings - Fiberglass reinforced polyester - thermoset box with galvanized steel ears - Size: D=1 3/4", W=2 3/8", H=3 1/4" - Mount with Metal ears - 2 metal wire clamps factory installed