10" X 10" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 12 5/8" X 12 5/8"] Fixed Blades with Damper Measure the size of the

Measure the size of the vent opening

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+ Product Details Size – 30"w X 24"h is the size for the duct opening measurement only

Both lines taped together every 18in for easier handling & installation

this model ensures top-notch air quality

10" X 10" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 12 5/8" X 12 5/8"] Fixed Blades with Damper Measure the size of the+ 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 Actual Filter Size 9 3 4"w x 9 3 4" x 1" 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