22" x 30" or 30" x 22" Cube Core Eggcrate Return Air Grille Insulated Line The powder-coat finish lends a

The powder-coat finish lends a smooth

heat pump and centralized air ducted units

The crank handle lever makes it easy to adjust to every weather situation

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this filter grille never rusts and withstands long-term use in any environment

22" x 30" or 30" x 22" Cube Core Eggcrate Return Air Grille Insulated Line The powder-coat finish lends a+ Product Details Size 22" x 30" or 30" x 22" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 23. 75" X 31. 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