8" x 34" or 34" x 8" Cube Core Eggcrate Return Air Grille w25h25 By simply measuring the width

By simply measuring the width or the length of the vent

you can't go wrong with this decorative grill

+ Product Details Size - 20"w X 30"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 26 5/8" width X 28 5/8" height

or commercial environments

8" x 34" or 34" x 8" Cube Core Eggcrate Return Air Grille w25h25 By simply measuring the width+ Product Details Size 8" x 34" or 34" x 8" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 9. 75" X 35. 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