25" X 25" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES Height_18in + Product Details 12"w X

+ Product Details 12"w X 12"h is the size for the drywall opening measurement only

ensuring durability in temperatures ranging from -40℃ to 120℃

+ Product Details Size – 24"w X 20"h is the size for the duct opening measurement only

26-gauge galvanized steel end cap

25" X 25" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES Height_18in + Product Details 12"w X+ Product Details Size 25"w X 25"h is the size for the duct opening measurement only, [Outer Dimensions: 27. 5"w X 22. 5"h] Actual Filter Size 24 3 4"w x 24 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,