24" X 30" Steel Return Air Filter Grille for 1" Filter - Removable Frame - Black - [Outer Dimensions: 26 5/8" X 32 5/8"] w30h30 actual front end outer dimensions

actual front end outer dimensions are approximately 10 5/8" width X 18 5/8" height

Actual Filter Size – 29 3/4"w x 15 3/4" x 1"

actual front end outer dimensions are approximately 22 5/8" width X 42 5/8" height

Efficient Airflow Design: The slots are meticulously angled to diversify airflow in two directions

24" X 30" Steel Return Air Filter Grille for 1" Filter - Removable Frame - Black - [Outer Dimensions: 26 5/8" X 32 5/8"] w30h30 actual front end outer dimensions+ Product Details Size 24"w X 30"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 26 5 8" width X 32 5 8" height Actual Filter Size 23 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.