20" X 30" Steel Return Air Filter Grille for 1" Filter - Removable Frame - * Filter Included *[Outer Dimensions: 22 5/8" X 32 5/8"] w24h24 For 8" duct opening

For 8" duct opening

These are specially sized to fit into all drop ceilings

5" - SEE BELOW IN DESCRIPTION How To Measure A Grille

actual front end outer dimensions are approximately 32 5/8" width X 14 5/8" height -

20" X 30" Steel Return Air Filter Grille for 1" Filter - Removable Frame - * Filter Included *[Outer Dimensions: 22 5/8" X 32 5/8"] w24h24 For 8" duct opening+ Product Details Size 20"w X 30"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 22 5 8" width X 32 5 8" height Actual Filter Size 19 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.