Photo 1 of 6x12 Inch (Duct Opening) Aluminum 1-Way Air Flow Vent – HVAC Vent Cover for Wall or Ceiling – Quiet HVAC Wall Register with Multi-Shutter Damper – Adjustable Curved Blade - Plastic Seal for Tight Fit

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Photo 1 of 6x12 Inch (Duct Opening) Aluminum 1-Way Air Flow Vent – HVAC Vent Cover for Wall or Ceiling – Quiet HVAC Wall Register with Multi-Shutter Damper – Adjustable Curved Blade - Plastic Seal for Tight FitPhoto 2 of 6x12 Inch (Duct Opening) Aluminum 1-Way Air Flow Vent – HVAC Vent Cover for Wall or Ceiling – Quiet HVAC Wall Register with Multi-Shutter Damper – Adjustable Curved Blade - Plastic Seal for Tight Fit