16" X 20" Steel Return Air Filter Grille for 1" Filter - Removable Frame - Black - [Outer Dimensions: 18 5/8" X 22 5/8"] Filter Grille you can watch this informative CRFG2028 Width_14in 4 X 12 Is

you can watch this informative video tutorial: How to Measure Your Vent Hole Before Ordering a Grille

this grille is a testament to high standard craftsmanship

Actual Filter Size – 7 3/4"w x 15 3/4" x 1"

+ Product Details Size - 28"w X 30"h is the size for the duct opening measurement only

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16" X 20" Steel Return Air Filter Grille for 1" Filter Removable Frame Black [Outer Dimensions: 18 5 8" X 22 5 8"] Filter Grille you can watch this informative CRFG2028 Width_14in 4 X 12 Is you can watch this informative video tutorial: How to Measure Your Vent Hole Before Ordering a Grille this grille is a testament to high standard craftsmanship