24" X 12" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 26 5/8" X 14 5/8"] Ceiling and its seamless drop-in installation

and its seamless drop-in installation process ensures effortless setup

actual front end outer dimensions are approximately 29

expanding or retracting the gap to meet your precise needs

+How To Measure A Grille Overall Size:

+ Product Description

24" X 12" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 26 5/8" X 14 5/8"] Ceiling and its seamless drop-in installation+ Product Details Size 24"w X 12"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 26 5 8" width X 14 5 8" height Actual Filter Size 23 3 4"w x 11 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.