The Advance A302 Escutcheon Ring (Black) is an in-line hinged ring interface adapter that works with a standard 1.5" NPT (schedule 40) pipe column when passing through a suspended ceiling tile. It ensures a professional streamline finish by covering the hole where the extension column passes through the tile. It's an ideal solution for high-ceiling environments such as conference rooms, trade show venues, commercial applications, or any other location where aesthetics are as important as performance.