25" X 30" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 27 5/8" X 32 5/8"] 18" Round Duct Pipe The total outer size of

The total outer size of this grille is the listed size plus 2 and 5/85"

+ Product Details Size - 25"w X 16"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 26 5/8" width X 8 5/8" height -

actual front end outer dimensions are approximately 26 5/8" width X 16 5/8" height

25" X 30" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 27 5/8" X 32 5/8"] 18" Round Duct Pipe The total outer size of+ Product Details Size 25"w X 30"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 27 5 8" width X 32 5 8" height Actual Filter Size 24 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 Installation Location Sidewall and ceiling Design Removable door face for easy filter change & cleaning uses a 1" thick filter.