Bose Professional Bose FreeSpace 3 Series II Bass Module Rough-In Pan (6-Pack)

FreeSpace 3 Series II Bass Module Rough-In Pan (6-Pack): Six rough-in pans that set FreeSpace 3 Series II bass module positions before the ceiling goes up. Compatible with FreeSpace 3 Series II bass modules.

Bose specifies it for new-construction hard-deck ceilings. It ships under part number 029855 (Rough-in pan for FreeSpace 3 Series II bass modules (6-pack)).