26" X 30" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 28 5/8" X 32 5/8"] w30h30 + Product Details Size -

+ Product Details Size - 4"w X 10"h is the size for the duct opening measurement only

Actual Filter Size – 21 3/4"w x 23 3/4" x 1"

Actual Filter Size – 24 3/4"w x 21 3/4" x 1"

Actual Filter Size – 23 3/4"w x 31 3/4" x 1"

26" X 30" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 28 5/8" X 32 5/8"] w30h30 + Product Details Size -+ Product Details Size 26"w X 30"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 28 5 8" width X 32 5 8" height Actual Filter Size 25 3 4"w x 29 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