30" X 18" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 32 5/8" X 20 5/8"] Brown actual front end outer dimensions Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

actual front end outer dimensions are approximately 16 5/8" width X 10 5/8" height

+ Product Details Size - 22"w X 32"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 32 5/8" width X 8 5/8" height

+ Product Details Size – 36"w X 30"h is the size for the duct opening measurement only

75" width X 7

30" X 18" Steel Return Air Filter Grille for 1" Filter Fixed Hinged [Outer Dimensions: 32 5 8" X 20 5 8"] Brown actual front end outer dimensions Compatible With Duct 7in Applications This sheet metal DDAG A 1212 actual front end outer dimensions are approximately 16 5 8" width X 10 5 8" height + Product Details Size 22"w X 32"h is the size for the duct opening measurement only