36" x 36" Cube Core Eggcrate Return Air Grille Color_Anodized Aluminum Actual Filter Size – 35

Actual Filter Size – 35 3/4"w x 7 3/4" x 1"

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

+ Product Details Size - 24"w X 4"h is the size for the duct opening measurement only

+ Product Details Size - 16"w X 30"h is the size for the duct opening measurement only

36" x 36" Cube Core Eggcrate Return Air Grille Color_Anodized Aluminum Actual Filter Size – 35+ Product Details Size 36" x 36" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 37. 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 electric