16" X 12" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES snips + Product Details Size -

+ Product Details Size - 20"w X 8"h is the size for the duct opening measurement only

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Optimal Airflow: Experience 25% greater airflow

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extreme heat and sunlight

16" X 12" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES snips + Product Details Size -+ Product Details Size 16"w X 12"h is the size for the duct opening measurement only, [Outer Dimensions: 18. 5"w X 14. 5"h] Actual Filter Size 15 3 4"w x 11 3 4" x 1" High Quality High quality rust free, strong aluminum construction with smooth finished edges for easy and safe use; Filter grille features a user friendly plastic latch that requires no screwdriver for opening. Installation Location Sidewall and ceiling. Design Heavier gauge than needed,