30" X 24" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES w18h18 And Meets/Beats ASTM B280 Standard

And Meets/Beats ASTM B280 Standard

actual front end outer dimensions are approximately 16 5/8" width X 16 5/8" height

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actual front end outer dimensions are approximately 14 5/8" width X 20 5/8" height

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30" X 24" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES w18h18 And Meets/Beats ASTM B280 Standard+ Product Details Size 30"w X 24"h is the size for the duct opening measurement only, [Outer Dimensions: 32. 5"w X 26. 5"h] Actual Filter Size 29 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,