28" X 34" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 30 5/8" X 36 5/8"] ceiling High Quality – Rigid aluminum

High Quality – Rigid aluminum construction with counter-sunk screw holes (screws included) and no sharp edges

+ Product Details Size – 16"w X 18"h is the size for the duct opening measurement only

Noise free components - no vibrating louvers etc

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28" X 34" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 30 5/8" X 36 5/8"] ceiling High Quality – Rigid aluminum+ Product Details Size 28"w X 34"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 30 5 8" width X 36 5 8" height Actual Filter Size 27 3 4"w x 33 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.