8" x 32" or 32" x 8" Cube Core Eggcrate Return Air Grille with filter + Product Details Size –

+ Product Details Size – 34"w X 8"h is the size for the duct opening measurement only

+ Product Details Perfect Fit & Easy Sizing - Designed for a 6" x 10" or 10" x 6" duct opening (measured at the opening)

+ Product Details Size - 4" Diameter is the size for the duct opening measurement only

+ Product Details Size - 30"w X 24"h X 2"d (for duct opening measurement only)

helping to maintain consistent temperature settings

8" x 32" or 32" x 8" Cube Core Eggcrate Return Air Grille with filter + Product Details Size –+ Product Details Size 8" x 32" or 32" x 8" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 9. 75" X 33. 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