8" x 16" or 16" x 8" Cube Core Eggcrate Return Air Grille Color_Aluminum 75" width X 13

75" width X 13

& EN 13180 standards

+ Product Details Size – 4"w X 12"h is the size for the duct opening measurement only

+ Product Details Size – 6" x 12" or 12" x 6" is the size for the duct opening measurement only

Refrigerant - 1/2" White Insulation - 50' Long

8" x 16" or 16" x 8" Cube Core Eggcrate Return Air Grille Color_Aluminum 75" width X 13+ Product Details Size 8" x 16" or 16" x 8" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 9. 75" X 17. 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