16" X 16" Adjustable AIR Supply Diffuser - HVAC Vent Cover Sidewall or Ceiling - Grille Register - High Airflow - White [Outer Dimensions: 17.75" w X 17.75" h] 16 X 16 White
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16" X 16" Adjustable AIR Supply Diffuser - HVAC Vent Cover Sidewall or Ceiling - Grille Register - High Airflow - White [Outer Dimensions: 17.75" w X 17.75" h] 16 X 16 White