34" X 18" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 36 5/8" X 20 5/8"] w24h24 actual front end outer dimensions 18" Round Duct Pipe Fixed 45 horizontal blades LO1810

actual front end outer dimensions are approximately 20 5/8" width X 24 5/8" height

Actual Filter Size – 31 3/4"w x 7 3/4" x 1"

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Its sleek contours bring a touch of modern sophistication to any room

+ Product Details Size – 25"w X 28"h is the size for the duct opening measurement only

34" X 18" Steel Return Air Filter Grille for 1" Filter Removable Frame [Outer Dimensions: 36 5 8" X 20 5 8"] w24h24 actual front end outer dimensions 18" Round Duct Pipe Fixed 45 horizontal blades LO1810 actual front end outer dimensions are approximately 20 5 8" width X 24 5 8" height Actual Filter Size – 31 3 4"w x 7 3 4" x 1"