12" x 26" or 26" x 12" Cube Core Eggcrate Return Air Grille Color_R-8.0 Pink Actual Filter Size – 35

Actual Filter Size – 35 3/4"w x 33 3/4" x 1"

+ Product Details Size – 12"w X 14"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 22 5/8" width X 52 5/8" height

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12" x 26" or 26" x 12" Cube Core Eggcrate Return Air Grille Color_R-8.0 Pink Actual Filter Size – 35+ Product Details Size 12" x 26" or 26" x 12" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 13. 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