30" X 24" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 32 5/8" X 26 5/8"] Supply Grille 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 27 5/8" height

Actual Filter Size – 23 3/4"w x 29 3/4" x 1"

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but you will appreciate the benefits over the period of time

+ Product Details Size – 20"w X 16"h is the size for the duct opening measurement only

30" X 24" Steel Return Air Filter Grille for 1" Filter Removable Frame [Outer Dimensions: 32 5 8" X 26 5 8"] Supply Grille 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 27 5 8" height Actual Filter Size – 23 3 4"w x 29 3 4" x 1"