24" X 18" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 26 5/8" X 20 5/8"] w24h24 + Product Details Size –

+ Product Details Size – 3"w X 10"h or 10"w X 3"h is the size for the duct opening measurement only

the actual front end outer dimensions are 7" in diameter

actual front end outer dimensions are approximately 10 5/8" width X 22 5/8" height

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

Actual Filter Size – 11 3/4"w x 23 3/4" x 1"

24" X 18" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 26 5/8" X 20 5/8"] w24h24 + Product Details Size –+ Product Details Size 24"w X 18"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 26 5 8" width X 20 5 8" height. High Quality high quality solid stamped steel with counter sunk screw holes (screws included) and no sharp edges Installation Location Ceiling Design Fixed hinged for easy filter change & cleaning uses a 1" thick filter. Our filter grille latch is easy to use on your fingers and