8" x 36" or 36" x 8" Cube Core Eggcrate Return Air Grille w32h32 Actual Filter Size – 17

Actual Filter Size – 17 3/4"w x 31 3/4" x 1"

+ Product Details Size - 10"w X 14"h is the size for the duct opening measurement only

Actual Filter Size – 7 3/4"w x 5 3/4" x 1"

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8" x 36" or 36" x 8" Cube Core Eggcrate Return Air Grille w32h32 Actual Filter Size – 17+ Product Details Size 8" x 36" or 36" x 8" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 9. 75" X 37. 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