12" x 26" or 26" x 12" Cube Core Eggcrate Return Air Grille 18" Round Duct Pipe Experience improved airflow dynamics and

Experience improved airflow dynamics and reduced noise thanks to its long neck body design

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+ Product Details Size – 6" x 8" or 8" x 6" is the size for the duct opening measurement only

+ Product Details Size – 8" x 16" or 16" x 8" is the size for the duct opening measurement only

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

12" x 26" or 26" x 12" Cube Core Eggcrate Return Air Grille 18" Round Duct Pipe Experience improved airflow dynamics and+ Product Details Size 12" x 26" or 26" x 12" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 13. 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