Bose Professional Bose DesignMax Black Grille for Ceiling-Mount Loudspeakers

DesignMax Black Grille for Ceiling-Mount Loudspeakers: Magnetic drop-in black grille for DesignMax ceiling loudspeakers, sold by model. Compatible with DesignMax DM5C, DM6C, DM8C and DM8C-SUB ceiling loudspeakers.

Bose specifies it for indoor. It ships under part numbers A01684-0100 (Black grille for DM5C), A01685-0100 (Black grille for DM6C), A01686-0100 (Black grille for DM8C/DM8C-SUB).