22" x 28" or 28" x 22" Cube Core Eggcrate Return Air Grille White 75"H – fits a 24"

75"H – fits a 24" X 4" duct opening

no professional tools needed

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Overall Size:

Ideal for Walls & Ceilings: Designed for seamless installation in standard 16" X 12" duct openings

22" x 28" or 28" x 22" Cube Core Eggcrate Return Air Grille White 75"H – fits a 24"+ Product Details Size 22" x 28" or 28" x 22" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 23. 75" X 29. 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