Chief Internal Joist Ceiling Kit

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Internal Joist Ceiling KitChief’s CMA165 Junction Box Adapter makes finished or new construction home projector installations quick and easy.- With just a 4" hole in the ceiling, y ou can install a projector by suspending it between ceiling joists- Includes junction box mounting brace and a 5" round plate that adapts to 1.5" NPT extension columns- Installation is similar to that for ceiling fans- The ceiling plate mates with a standard fan mounting junction box- Expands to fit 16" or 24" joist spacing Show more