8" x 8" [Duct Opening] Ceiling Supply Diffuser Vent Cover – 1-Way Airflow with Full Aluminum Frame, Back Blades & Opposing Blade Lever Damper [Outer Size: 11" x 11"] w25h25 actual front end outer dimensions

actual front end outer dimensions are approximately 13" width X 13" height -

+ Product Details Size – 8" x 16" or 16" x 8" is the size for the duct opening measurement only

actual front end outer dimensions are approximately 36 5/8" width X 8 5/8" height

High Standard Quality - Every part is hand inspected for quality before it is packaged

+ Product Details Size – 24" x 24" with 6" collar T-Bar drop ceiling perforated return grill - metal back casing

8" x 8" [Duct Opening] Ceiling Supply Diffuser Vent Cover – 1-Way Airflow with Full Aluminum Frame, Back Blades & Opposing Blade Lever Damper [Outer Size: 11" x 11"] w25h25 actual front end outer dimensions+ 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