48" X 24" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES Adjustable Return + Product Details Size -

+ Product Details Size - 16"w X 14"h is the size for the duct opening measurement only

if your hole is 20" wide by 14" tall

+ Product Details Size - 26"w X 16"h is the size for the duct opening measurement only

+ Product Details Size - 8"w X 36"h is the size for the duct opening measurement only

+ Product Details Size – 18" Wooden Corner Baseboard Grille

48" X 24" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES Adjustable Return + Product Details Size -+ Product Details Size 48"w X 24"h is the size for the duct opening measurement only, [Outer Dimensions: 50. 5"w X 26. 5"h] Actual Filter Size 47 3 4"w x 23 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,