10" X 10" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 12 5/8" X 12 5/8"] Powder-Coated accordion dd { margin: 0

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+ Product Details Size - 12"w X 36"h is the size for the duct opening measurement only

+ Product Details Size - 18"w X 32"h is the size for the duct opening measurement only

How to Measure Your Vent Hole Before Ordering a Grille

unrestricted airflow with a precise 50° angled design

10" X 10" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 12 5/8" X 12 5/8"] Powder-Coated accordion dd { margin: 0+ Product Details Size 10"w X 10"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 12 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 and ceiling Design removable door face for easy filter change & cleaning uses a 1" thick filter. Our filter grille latch is easy to use on