18" X 24" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES tool bags This 18" X 10" end

This 18" X 10" end cap is constructed with 26-gauge galvanized steel

high-impact clear plastic

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This feature makes it an ideal replacement access door

Crafted with SK5 Japanese Alloy Steel V Blade for a one-point cut

18" X 24" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES tool bags This 18" X 10" end+ Product Details Size 18"w X 24"h is the size for the duct opening measurement only, [Outer Dimensions: 20. 5"w X 26. 5"h] Actual Filter Size 17 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,