24" X 20" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES Insulated Line Set + Product Details Size -

+ Product Details Size - 16"w X 30"h is the size for the duct opening measurement only

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+ Product Details Size - 26"w X 12"h is the size for the duct opening measurement only

24" X 20" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES Insulated Line Set + Product Details Size -+ Product Details Size 24"w X 20"h is the size for the duct opening measurement only, [Outer Dimensions: 26. 5"w X 22. 5"h] Actual Filter Size 23 3 4"w x 19 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,