18.0 Cu. In. Single gang electrical box for use with nonmeatllic sheathed cable - Machine tapped device holes, 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 - Size: D=3 3/16", W=2 3/8", H=3 1/4" - Mount with Metal wing brackets/metal ears wall compression - Two Speed klamps™ bulk packed
