14" x 14" [Duct Opening] Ceiling Supply Diffuser Vent Cover – 1-Way Airflow with Full Aluminum Frame, Back Blades & Opposing Blade Lever Damper [Outer Size: 17" x 17"] with filter + Product Details Size - 4 X 12 Is CRFG2028 Width_14in

+ Product Details Size - 10"w X 22"h X 2"d (for duct opening measurement only)

ensuring optimal circulation throughout your space

+Product Details Size – 4"h x 14"w is the size for the duct opening measurement only

+ Product Details Size – 26"w X 26"h is the size for the duct opening measurement only

Actual Filter Size – 9 3/4"w x 11 3/4" x 1"

14" x 14" [Duct Opening] Ceiling Supply Diffuser Vent Cover – 1 Way Airflow with Full Aluminum Frame, Back Blades & Opposing Blade Lever Damper [Outer Size: 17" x 17"] with filter + Product Details Size 4 X 12 Is CRFG2028 Width_14in + Product Details Size 10"w X 22"h X 2"d (for duct opening measurement only) ensuring optimal circulation throughout your space