24" x 30" or 30" x 24" Cube Core Eggcrate Return Air Grille Aluminum Adjustable Curved Blade + Product Details Perfect Fit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 16" x 24" OR 24" X 16" duct opening (measured at the opening)

+ Product Details Size - 20"w X 22"h X 2"d (for duct opening measurement only)

+ Product Details Size – 36"w X 8"h is the size for the duct opening measurement only

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and beautiful

24" x 30" or 30" x 24" Cube Core Eggcrate Return Air Grille Aluminum Adjustable Curved Blade + Product Details Perfect Fit+ Product Details Size 24" x 30" or 30" x 24" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 25. 75" X 31. 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