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12x24x1 MERV-11 Air Furnace Filter

12x24x1 MERV-11 Air Furnace Filter

12x24x1 MERV-11 Air Furnace Filter This filter has a MERV 11 rating, making it one of the best residential filters you can get. Forced air furnaces can’t use HEPA-rated filters, because the density of the HEPA filter will overly restrict air flow. Instead, a...