20" X 10" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 22 5/8" X 12 5/8"] w12h12 accordion-item { margin-bottom: 16px

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strong aluminum construction with smooth finished edges for easy and safe use

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

+ Product Details Size – 30"w X 14"h is the size for the duct opening measurement only

4" X 10" Is The Size For The Duct Opening (floor/vent hole) Measurement Only

20" X 10" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 22 5/8" X 12 5/8"] w12h12 accordion-item { margin-bottom: 16px+ Product Details Size 20"w X 10"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 22 5 8" width X 12 5 8" height High Quality high quality solid stamped steel with counter sunk screw holes (screws included) and no sharp edges Installation Location Sidewall & ceiling Design removable frame for easy filter change & cleaning uses a 1" thick filter. Our filter grille latch is easy to use on your