10" x 30" or 30" x 10" Cube Core Eggcrate Return Air Grille sidewall Operating from -40°F to +248°F

Operating from -40°F to +248°F

Heavy Gauge Steel

+ Product Details Size - 24"w X 12"h is the size for the duct opening measurement only

75" width X 17

10" x 30" or 30" x 10" Cube Core Eggcrate Return Air Grille sidewall Operating from -40°F to +248°F+ Product Details Size 10" x 30" or 30" x 10" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 11. 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