14" x 14" [Duct Opening] Ceiling Supply Diffuser Vent Cover – 2-Way Airflow with Full Aluminum Frame, Back Blades & Opposing Blade Lever Damper [Outer Size: 17" x 17"] 9" Diameter 75"H – fits a 8"

75"H – fits a 8" X 4" duct opening

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+ Product Details Size – 14"w X 28"h is the size for the duct opening measurement only

Our duct stick-on has made of high-quality galvanized steel metal for durability and rust prevention

We also made sure that each filter in every pack lasts you a long time

14" x 14" [Duct Opening] Ceiling Supply Diffuser Vent Cover – 2-Way Airflow with Full Aluminum Frame, Back Blades & Opposing Blade Lever Damper [Outer Size: 17" x 17"] 9" Diameter 75"H – fits a 8"+ Product Details Size Refers to duct opening only. The face frame extends roughly 1. 5" on each side. Do not measure the overall grille for sizing. Design All aluminum frame and back blades. Rustproof and built to last in moisture prone environments. Quiet Airflow Opposing blade damper design reduces vibration and noise for smoother air distribution. Clean Finish White powder coated surface resists chips, scratches, and discoloration over time. Easy