6" x 26" or 26" x 6" Cube Core Eggcrate Return Air Grille Aluminum + Product Details Size –

+ Product Details Size – 8" x 10" or 10" x 8" is the size for the duct opening measurement only

Measuring 3" in diameter for the duct opening

High Quality Aluminum – The premium durable aluminum will never rust and it will never wear through leaving the material with an elegant

+ Product Details Size – 32"w X 6"h is the size for the duct opening measurement only

6" x 26" or 26" x 6" Cube Core Eggcrate Return Air Grille Aluminum + Product Details Size –+ Product Details Size 6" x 26" or 26" x 6" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 7. 75" X 27. 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