14" X 6" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 16 5/8" X 8 5/8"] Color_Red Oak Wood /* more readable bullets */

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+ Product Details Size - 4"w X 34"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 20 5/8" width X 36 5/8" height

+ Product Details Size - The listed 4" diameter refers specifically to the size of the duct opening

+ Product Details Size – 22"w X 14"h is the size for the duct opening measurement only

14" X 6" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 16 5/8" X 8 5/8"] Color_Red Oak Wood /* more readable bullets */+ Product Details Size 14"w X 6"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 16 5 8" width X 8 5 8" height Actual Filter Size 13 3 4"w x 5 3 4" x 1" High quality High quality solid stamped steel with counter sunk screw holes (screws included) and no sharp edges Location Sidewall and ceiling Design Removable door face for easy filter change & cleaning uses a 1" thick filter. Our filter grille