26" x 34" or 34" x 26" Cube Core Eggcrate Return Air Grille w18h18 + Product Description Upgrade your

+ Product Description Upgrade your HVAC system with our 4" Round Air Vent Supply Grille

+ Product Details Size - 24"w X 10"h is the size for the duct opening measurement only

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Design – Cubic core eggcrate design Offers highest airflow efficiency at almost 95%

26" x 34" or 34" x 26" Cube Core Eggcrate Return Air Grille w18h18 + Product Description Upgrade your+ Product Details Size 26" x 34" or 34" x 26" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 27. 75" X 35. 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