20" X 30" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES tape With a 7-inch size

With a 7-inch size

the second number represents the width

High Quality – Solid rigid steel body for durability and reliability

Size: 8 X 6

20" X 30" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES tape With a 7-inch size+ Product Details Size 20"w X 30"h is the size for the duct opening measurement only, [Outer Dimensions: 22. 5"w X 32. 5"h] Actual Filter Size 19 3 4"w x 29 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,