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Amazon.com: 1.20" ID Cable Pass Through Wall Port 3 5/8" - 5 1/4" Wall Thickness (White) - Pass Cables from one Side of a Wall or Barrier to The Other. : Electronics
Legrand Wiremold in Wall TV Power and Cable Grommet Kit with Mounting Brackets and Hole Saw, White ZKT101 - The Home Depot
Amazon.com: Hol-E-Cap Cable and Cord Hole Cover Low Voltage Wall Plate for Drywall - White : Electronics