26" X 32" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 28 5/8" X 34 5/8"] Insulated Line Set textContent = isOpen

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R value rating of insulation - R3

[Outer Dimensions: 38

making it a reliable choice for improving indoor air quality

+ Product Details Size - 12"w X 24"h is the size for the duct opening measurement only

26" X 32" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 28 5/8" X 34 5/8"] Insulated Line Set textContent = isOpen+ Product Details Size 26"w X 32"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 28 5 8" width X 34 5 8" height Actual Filter Size 25 3 4"w x 31 3 4" x 1" High quality High quality solid stamped steel with counter sunk screw holes (screws included) and no sharp edges Design Removable door face for easy filter change & cleaning uses a 1" thick filter. Our filter grille latch is easy to use on