26" X 12" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 28 5/8" X 14 5/8"] Filter Grille + Product Details Size –

+ Product Details Size – 16"w X 30"h is the size for the duct opening measurement only

+ Product Description Maximize HVAC efficiency with our aluminum eggcrate return air filter grille

+ Product Details Size - 36"w X 6"h is the size for the duct opening measurement only

adds a touch of sophistication to any room

Actual Filter Size – 7 3/4"w x 27 3/4" x 1"

26" X 12" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 28 5/8" X 14 5/8"] Filter Grille + Product Details Size –+ Product Details Size 26"w X 12"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 28 5 8" width X 14 5 8" height Actual Filter Size 25 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.