24" x 34" or 34" x 24" Cube Core Eggcrate Return Air Grille Width_20in accordion-title:hover { background-color: #f0f0f0

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Ideal for Walls & Ceilings: Designed for seamless installation in standard 24" X 4" duct openings

+ Product Details Size – 8"w X 6"h is the size for the duct opening measurement only

+ Product Details Size - 14"w X 16"h is the size for the duct opening measurement only

Its professional design and solid construction make it the perfect solution for safeguarding your thermostat against unwanted access

24" x 34" or 34" x 24" Cube Core Eggcrate Return Air Grille Width_20in accordion-title:hover { background-color: #f0f0f0+ Product Details Size 24" x 34" or 34" x 24" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 25. 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