64.0 Cu. In. Three gang electrical box for use with nonmeatllic sheathed cable - Quick ThreadÖ device holes, leveling ribs - 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 Stud face mount steel hanger bracket with 1/2" offset and opposite side drywall tabs