20" x 24" or 24" x 20" Cube Core Eggcrate Return Air Grille Return Grille + Product Details Size –

+ Product Details Size – 32"w X 8"h is the size for the duct opening measurement only

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easy unrestricted airflow

this grill is the epitome of excellence in both form and function

Its durability and performance contribute to overall comfort

20" x 24" or 24" x 20" Cube Core Eggcrate Return Air Grille Return Grille + Product Details Size –+ Product Details Size 20" x 24" or 24" x 20" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 21. 75" X 25. 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