20" X 40" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES Aluminum and hardware included for a

and hardware included for a precise installation and wall mounting - Can be adjusted with expansion bolts to fit the exact measurement of your air conditioning unit - L-shaped brackets are foldable for any degree tilt between 0 & 180 degrees (slight rearward tilt recommended to ensure safety)

+ Product Details Perfect Fit & Easy Sizing - Designed for a 26" x 14" OR 14" x 26" duct opening (measured at the opening)

+ Product Details Size - 30"w X 36"h X 2"d (for duct opening measurement only)

designed to stop all types of fittings and terminate rectangular duct runs

20" X 40" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES Aluminum and hardware included for a+ Product Details Size 20"w X 40"h is the size for the duct opening measurement only, [Outer Dimensions: 22. 5"w X 42. 5"h] Actual Filter Size 19 3 4"w x 39 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,