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Read All Questions & AnswersI am replacing some broken round ceiling difusers, The OD of the internal diffuser is about 61/2", disfuser cover is 10"OD
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On our round ceiling diffusers we measure the dimensions from screw hole to screw hole. For instance our 6-in round ceiling diffuser will measure 6-inches from screw hole to screw hole and 9-inches overall.
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