8" x 32" or 32" x 8" Cube Core Eggcrate Return Air Grille Fixed Blades + Product Details Size -

+ Product Details Size - 12" X 12" is the size for the duct opening measurement only

+ Product Details Size – 16" x 34" or 34" x 16" is the size for the duct opening measurement only

Universal size

actual front end outer dimensions are approximately 25

8" x 32" or 32" x 8" Cube Core Eggcrate Return Air Grille Fixed Blades + 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