18.0 Cu. In. Single gang electrical box for use with nonmeatllic sheathed cable - Molded-in splined device holes, leveling ribs - New work residential construction 2 HR fire resistive walls & ceilings - PVC - Thermoplastic - Size: D=2 5/8", W=2 5/16", H=3 3/4" - Mount with Stud face mount molded-in hanger bracket with 1/2" offset and opposite side drywall tabs