14" x 36" or 36" x 14" Cube Core Eggcrate Return Air Grille White The process is intuitive: simply

The process is intuitive: simply select the appropriate ceiling square for your grill

Actual Filter Size – 17 3/4"w x 5 3/4" x 1"

gymnasiums & restaurants

+ Product Details Size – 20" x 26 or 26" x 20" is the size for the duct opening measurement only

+ Product Details Size - 32"w X 10"h is the size for the duct opening measurement only

14" x 36" or 36" x 14" Cube Core Eggcrate Return Air Grille White The process is intuitive: simply+ Product Details Size 14" x 36" or 36" x 14" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 15. 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