64.0 Cu. In. Three gang electrical box for use with nonmeatllic sheathed cable - Molded-in splined device holes, offset gauge marks, leveling ribs - New work residential construction 2 HR fire resistive walls - New work residential construction 2 HR fire resistive walls - Polycarbonate - Thermoplastic - Size: D=3 9/16", W=5 13/16", H=3 3/4" - Mount with Angled mid nails