6" x 34" or 34" x 6" Cube Core Eggcrate Return Air Grille Color_R-4.2 Yellow + Product Details Size -

+ Product Details Size - 20"w X 12"h is the size for the duct opening measurement only

+ Product Details Size - 24"w X 20"h is the size for the duct opening measurement only

guaranteeing efficient ventilation throughout your space

75"H – fits a 12" X 12" duct opening

+ Product Details Size – 20"w X 50"h is the size for the duct opening measurement only

6" x 34" or 34" x 6" Cube Core Eggcrate Return Air Grille Color_R-4.2 Yellow + Product Details Size -+ Product Details Size 6" x 34" or 34" x 6" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 7. 75" X 35. 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