14" x 22" or 22" x 14" Cube Core Eggcrate Return Air Grille Compatible with Duct 8" Operating from -40°F to +248°F

Operating from -40°F to +248°F

+ Product Details Size - 4"w X 34"h is the size for the duct opening measurement only

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please note that the total outer dimensions of the grille measure 8" in diameter

providing efficient performance of up to 300m3/h

14" x 22" or 22" x 14" Cube Core Eggcrate Return Air Grille Compatible with Duct 8" Operating from -40°F to +248°F+ Product Details Size 14" x 22" or 22" x 14" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 15. 75" X 23. 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