25" X 14" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 27 5/8" X 16 5/8"] ceiling + Product Details Size – Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

+ Product Details Size – 16"w X 36"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 14 5/8" width X 34 5/8" height

+ Product Details Size – 10"w X 16"h is the size for the duct opening measurement only

with actual outer dimensions of 20

75" width X 37

25" X 14" Steel Return Air Filter Grille for 1" Filter Removable Frame [Outer Dimensions: 27 5 8" X 16 5 8"] ceiling + Product Details Size – Compatible With Duct 7in Applications This sheet metal DDAG A 1212 + Product Details Size – 16"w X 36"h is the size for the duct opening measurement only actual front end outer dimensions are approximately 14 5 8" width X 34 5 8" height