30" X 14" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES w6h6 Insulation – A thick blanket

Insulation – A thick blanket of fiberglass insulation provides you with an R-Value of 8

+ Product Details Size - 34"w X 30"h is the size for the duct opening measurement only

+ Product Details Size - 34"w X 26"h is the size for the duct opening measurement only

+ Product Details Size – 12" x 30" or 30" x 12" is the size for the duct opening measurement only

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30" X 14" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES w6h6 Insulation – A thick blanket+ Product Details Size 30"w X 14"h is the size for the duct opening measurement only, [Outer Dimensions: 32. 5"w X 16. 5"h] Actual Filter Size 29 3 4"w x 13 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,