24" X 30" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES Color_Anodized Aluminum R value rating of insulation

R value rating of insulation - R3

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

actual front end outer dimensions are 33

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Ideal for Walls & Ceilings: Designed for seamless installation in standard 10" X 6" duct openings

24" X 30" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES Color_Anodized Aluminum R value rating of insulation+ Product Details Size 24"w X 30"h is the size for the duct opening measurement only, [Outer Dimensions: 26. 5"w X 32. 5"h] Actual Filter Size 23 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,