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![12"w X 4"h Adjustable AIR Supply Diffuser - HVAC Vent Cover Sidewall or Ceiling - Grille Register - High Airflow - White [Outer Dimensions: 13.75"w X 5.75"h]](http://smokeysbbqshop.com/cdn/shop/files/715A91hprfL._AC_SX679_18d530ab-07f2-420a-b144-a03ad9d9be12.jpg?v=1773836382&width=1445)
![12"w X 4"h Adjustable AIR Supply Diffuser - HVAC Vent Cover Sidewall or Ceiling - Grille Register - High Airflow - White [Outer Dimensions: 13.75"w X 5.75"h]](http://smokeysbbqshop.com/cdn/shop/files/61fhLdCWsmL._AC_SY879_b3ce2e36-c2a5-4210-b2e2-fbfd8e89863a.jpg?v=1773836382&width=1445)
![12"w X 4"h Adjustable AIR Supply Diffuser - HVAC Vent Cover Sidewall or Ceiling - Grille Register - High Airflow - White [Outer Dimensions: 13.75"w X 5.75"h]](http://smokeysbbqshop.com/cdn/shop/files/71mOdwfiVoL._AC_SX679_6e44e726-6782-4b84-a363-8225bf5ae75d.jpg?v=1773836382&width=1445)
![12"w X 4"h Adjustable AIR Supply Diffuser - HVAC Vent Cover Sidewall or Ceiling - Grille Register - High Airflow - White [Outer Dimensions: 13.75"w X 5.75"h]](http://smokeysbbqshop.com/cdn/shop/files/71K-lYpGKDL._AC_SX679_7fa33e90-8724-4e13-aa95-c4286b760faa.jpg?v=1773836382&width=1445)
![12"w X 4"h Adjustable AIR Supply Diffuser - HVAC Vent Cover Sidewall or Ceiling - Grille Register - High Airflow - White [Outer Dimensions: 13.75"w X 5.75"h]](http://smokeysbbqshop.com/cdn/shop/files/514sRVSd0dL._AC_2a8214e8-4dcd-4f0c-9453-27cdb9b1f556.jpg?v=1773836382&width=1445)
![12"w X 4"h Adjustable AIR Supply Diffuser - HVAC Vent Cover Sidewall or Ceiling - Grille Register - High Airflow - White [Outer Dimensions: 13.75"w X 5.75"h]](http://smokeysbbqshop.com/cdn/shop/files/812OyrIy1VL._AC_SX679_b69b9746-8b16-4513-8b12-406fcd8ec56e.jpg?v=1773836382&width=1445)
![12"w X 4"h Adjustable AIR Supply Diffuser - HVAC Vent Cover Sidewall or Ceiling - Grille Register - High Airflow - White [Outer Dimensions: 13.75"w X 5.75"h]](http://smokeysbbqshop.com/cdn/shop/files/81DxlZXjfyS._AC_SX679_cb421759-af64-4433-8e1a-dc076b861152.jpg?v=1773836382&width=1445)