20" X 40" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES White 75"H – fits a 14"

75"H – fits a 14" X 12" duct opening

+ Product Details Size - 32"w X 4"h is the size for the duct opening measurement only

+ Product Details Size - 16"w X 32"h X 2"d (for duct opening measurement only)

+ Product Details Size – Size - Cuts 45mm & below

Design – This duct fitting is designed for transitioning oval wall stack ducting to round sheet metal pipe

20" X 40" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES White 75"H – fits a 14"+ 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,