30" X 24" Steel Return Air Filter Grille for 1" Filter - Removable Frame - Black - [Outer Dimensions: 32 5/8" X 26 5/8"] w12h12 actual front end outer dimensions

actual front end outer dimensions are approximately 10 5/8" width X 10 5/8" height

with no sharp edges to worry about

+ Product Details Size - 26"w X 34"h is the size for the duct opening measurement only

If your hole is 14" wide by 20" tall

85" width X 11

30" X 24" Steel Return Air Filter Grille for 1" Filter - Removable Frame - Black - [Outer Dimensions: 32 5/8" X 26 5/8"] w12h12 actual front end outer dimensions+ Product Details Size 30"w X 24"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 32 5 8" width X 26 5 8" height Actual Filter Size 29 3 4"w x 23 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.