12" X 24" Steel Return Air Filter Grille for 1" Filter - Removable Frame - Black - [Outer Dimensions: 14 5/8" X 26 5/8"] w24h24 + Product Details Size –

+ Product Details Size – 14"w X 36"h is the size for the duct opening measurement only

Operating temperature from -40°f to +248°f [-40°c to +120°c]

+ Product Details Size – 26"w X 10"h is the size for the duct opening measurement only

We pride ourselves on offering top-of-the-line products that meet the highest standards

+ Product Details Size - 28"w X 16"h is the size for the duct opening measurement only

12" X 24" Steel Return Air Filter Grille for 1" Filter - Removable Frame - Black - [Outer Dimensions: 14 5/8" X 26 5/8"] w24h24 + Product Details Size –+ Product Details Size 12"w X 24"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 14 5 8" width X 26 5 8" height Actual Filter Size 11 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 Location Sidewall and ceiling Design Removable door face for easy filter change & cleaning uses a 1" thick filter. Our filter