snippet: The <b>Adapter for a 5" Hole</b> allows you to install Thru-Glass Communicators in 5" (127 mm) diameter openings. The Adapter is designed for minimum 1/2" (12 mm) thick glazing. To use the Adapter with 1/4" to 3/8" (6 to 10 mm) thick glazing, a special order Adapter must be first quoted by DK Hardware Sales Department.

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