24" X 24" Return Air Filter Grille - Filter Included - Easy Plastic Tabs for Removable Face/Door Insulated Line Set display = 'none'

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Auto Switch On Sensor: Yes

Designed for optimal air flow and lasting durability

+ Product Details Size – 14" x 34" or 34" x 14" is the size for the duct opening measurement only

+ Product Details Size - 20"w X 10"h is the size for the duct opening measurement only

24" X 24" Return Air Filter Grille - Filter Included - Easy Plastic Tabs for Removable Face/Door Insulated Line Set display = 'none'+ Product Details Size 24"w X 24"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 25. 75" width X 25. 75" height Actual Filter Size 23 3 4"w x 23 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.