22" x 36" or 36" x 22" Cube Core Eggcrate Return Air Grille Powder Coated + Product Details Size –

+ Product Details Size – 14"w X 12"h is the size for the duct opening measurement only

this grill will provide the design aesthetic you're looking for

875" width X 8" height

actual front end outer dimensions are approximately 18 5/8" width X 18 5/8" height

+ Product Details Size – 28"w X 24"h is the size for the duct opening measurement only

22" x 36" or 36" x 22" Cube Core Eggcrate Return Air Grille Powder Coated + Product Details Size –+ Product Details Size 22" x 36" or 36" x 22" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 23. 75" X 37. 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