Lowell Manufacturing CP4 Recessed Backbox, 4" Speaker, 6.31" Dia. x 4" Depth

The recessed enclosure for use with a 4 inch driver and screw-mount grille features an extended flange, making it ideal for new construction where the flange protects the opening from plaster, poured concrete or sheetrock. It can also be used in existing construction when installed in suspended tile ceilings, in which case a tile bridge or channel rails are recommended.