20" X 25" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES Compatible with Duct 4" hp-birdscreen-popup

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+ Product Details Size - 10"w X 36"h X 2"d (for duct opening measurement only)

+ Product Details Size & Compatibility – The size of the wall angle register boot is 10" X 4" X 6" and it is compatible with duct 6"

75" Height - SEE BELOW IN DESCRIPTION How To Measure A Grille

+How To Measure A Grille Overall Size:

20" X 25" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES Compatible with Duct 4" hp-birdscreen-popup+ Product Details Size 20"w X 25"h is the size for the duct opening measurement only, [Outer Dimensions: 22. 5"w X 27. 5"h] Actual Filter Size 19 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,