View 3 of [20 x 8 Duct Hole] Aluminum Single Deflection Adjustable Air Supply Sidewall or Ceiling Vent Cover: Optimize Airflow Control with Movable Blades [21.6 x 9.6" Face]. 20” X 8”

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View 1 of [20 x 8 Duct Hole] Aluminum Single Deflection Adjustable Air Supply Sidewall or Ceiling Vent Cover: Optimize Airflow Control with Movable Blades [21.6 x 9.6" Face]. 20” X 8”View 2 of [20 x 8 Duct Hole] Aluminum Single Deflection Adjustable Air Supply Sidewall or Ceiling Vent Cover: Optimize Airflow Control with Movable Blades [21.6 x 9.6" Face]. 20” X 8”View 3 of [20 x 8 Duct Hole] Aluminum Single Deflection Adjustable Air Supply Sidewall or Ceiling Vent Cover: Optimize Airflow Control with Movable Blades [21.6 x 9.6" Face]. 20” X 8”