Replacement Door Speaker to replace Nutone IS-69PB, IS-69AB, IS-69WH, IS67WH, IS-67D. Works with Master Stations IMA-3303, IM-3303, IMA-4406, IM-4406, IM-3003, IM-4006, IM-5000, IM-5006, IM-3204. Mounts beside the door and is recessed into wall. Package includes cast metal door speaker, lighted push button, mounting screws, installation instructions, and quick-connect wires for easy connection. Actual speaker dimensions are 4-7/8" W x 6-1/2" H. Uses a 3.5" 16 ohm speaker.