Allied Moulded SB-1

23.0 Cu. In. Single gang adjustable electrical box for use with nonmeatllic sheathed cable - Molded-in splined device holes, adjustable slider plate for additional wall substrate thickness, rectangular exterior for easy cut-in, leveling ribs, offset gauge marks - New and old work residential construction 2 HR fire resistive walls and ceilings - PVC - Thermoplastic - Size: D=3 9/16", W=2 5/16", H=3 3/4" - Mount with Internal screws with adjustable slider plate for substrates 1/2" to 1 3/8"