20" X 34" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 22 5/8" X 36 5/8"] return grille Actual Filter Size – 24 Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

Actual Filter Size – 24 3/4"w x 25 3/4" x 1"

actual front end outer dimensions are approximately 34 5/8" width X 24 5/8" height

+ Product Details Size – 24"w X 32"h is the size for the duct opening measurement only

+ Product Details Size – 18"w X 28"h is the size for the duct opening measurement only

+ Product Description Introducing the 3-coned supply grille for a T-bar lay-in

20" X 34" Steel Return Air Filter Grille for 1" Filter Removable Frame [Outer Dimensions: 22 5 8" X 36 5 8"] return grille Actual Filter Size – 24 Compatible With Duct 7in Applications This sheet metal DDAG A 1212 Actual Filter Size – 24 3 4"w x 25 3 4" x 1" actual front end outer dimensions are approximately 34 5 8" width X 24 5 8" height