8" x 26" or 26" x 8" Cube Core Eggcrate Return Air Grille Fixed Blades Actual Front End Outer Dimensions

Actual Front End Outer Dimensions Are 12" Width X 8" Height - SEE IN DESCRIPTION HOW TO MEASURE A GRILLE

Actual Filter Size – 21 3/4"w x 35 3/4" x 1"

+ Product Details Size – 12"w X 6"h is the size for the duct opening measurement only

+ Product Details Size - The listed 6" diameter refers specifically to the size of the duct opening

8" x 26" or 26" x 8" Cube Core Eggcrate Return Air Grille Fixed Blades Actual Front End Outer Dimensions+ Product Details Size 8" x 26" or 26" x 8" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 9. 75" X 27. 75". High Quality High quality, rust free aluminum construction with smooth finished edges and counter sunk screw holes (screws included); no sharp edges.. Installation Location sidewall and ceiling. Design Cubic core eggcrate design Offers highest airflow efficiency at almost 95%, reducing