25" X 25" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES Height_18in + Product Details Size -

+ Product Details Size - 14"w X 8"h X 2"d (for duct opening measurement only)

+ Product Details 12"w X 12"h is the size for the drywall opening measurement only

The round side is crimped for easy insertion

actual front end outer dimensions are 27

25" X 25" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES Height_18in + 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,