8" x 30" or 30" x 8" Cube Core Eggcrate Return Air Grille Powder Coated actual front end outer dimensions

actual front end outer dimensions are approximately 19

+ Product Details Size – 20" x 20" is the size for the duct opening measurement only

+ Product Details Size – 18" Corner Baseboard Grille - White - HVAC corner vent cover

Traditional HVAC systems were designed for cold air

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8" x 30" or 30" x 8" Cube Core Eggcrate Return Air Grille Powder Coated actual front end outer dimensions+ Product Details Size 8" x 30" or 30" x 8" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 9. 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