26" X 36" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 28 5/8" X 38 5/8"] w24h24 + Product Details Size -

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

+ Product Details Size – 25"w X 24"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 31 5/8" width X 24 5/8" height -

+ Product Details Size – 20"w X 10"h is the size for the duct opening measurement only

26" X 36" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 28 5/8" X 38 5/8"] w24h24 + Product Details Size -+ Product Details Size 26"w X 36"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 28 5 8" width X 26 5 8" height Actual Filter Size 25 3 4"w x 35 3 4" x 1" High quality High quality solid stamped steel with counter sunk screw holes (screws included) and no sharp edges Design Removable door face for easy filter change & cleaning uses a 1" thick filter. Our filter grille latch is easy to use on