22" x 26" or 26" x 22" Cube Core Eggcrate Return Air Grille Aluminum - Cube Core 875" width X 11

875" width X 11

Actual Filter Size – 25 3/4"w x 19 3/4" x 1"

Gymnasiums & Restaurants

Actual Filter Size – 47 3/4"w x 23 3/4" x 1"

22" x 26" or 26" x 22" Cube Core Eggcrate Return Air Grille Aluminum - Cube Core 875" width X 11+ Product Details Size 22" x 26" or 26" x 22" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 23. 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