25" X 25" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES w32h32 + Product Details Size –

+ Product Details Size – 4"w X 30"h or 30" x 4" is the size for the duct opening measurement only

9% pure copper)

+ Product Details Size – Sheet metal duct board take off start collar is 8" and it is compatible with duct 8"

Measuring 8" in diameter for the duct opening

+ Product Details Size - 28"w X 10"h is the size for the duct opening measurement only

25" X 25" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES w32h32 + Product Details Size –+ 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,