30" x 36" or 36" x 30" Cube Core Eggcrate Return Air Grille Compatible with Duct 10" 85" width X 7

85" width X 7

+ Product Details Size - 34"w X 28"h is the size for the duct opening measurement only

is fireproof and ensures efficient thermal performance

font-weight: 500

scratch-resistant

30" x 36" or 36" x 30" Cube Core Eggcrate Return Air Grille Compatible with Duct 10" 85" width X 7+ Product Details Size 30" x 36" or 36" x 30" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 32. 5" X 38. 5". 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