26" X 8" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 28 5/8" X 10 5/8"] 18in diameter actual front end outer dimensions

actual front end outer dimensions are approximately 27 5/8" width X 36 5/8" height

Operating temperature from -40°f to +248°f [-40°c to +120°c]

the actual front end outer dimensions are 8" in diameter

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26" X 8" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 28 5/8" X 10 5/8"] 18in diameter actual front end outer dimensions+ Product Details Size 26"w X 8"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 28 5 8" width X 10 5 8" height Actual Filter Size 25 3 4"w x 7 3 4" x 1" High Quality High quality solid stamped steel with counter sunk screw holes (screws included) and no sharp edges Installation Location Sidewall and ceiling Design Removable door face for easy filter change & cleaning uses a 1" thick filter. Our