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428526 - Fantech 428526 - MERV8 Filter Kit for HERO 150H (Pack of 2)
BestAir Contractor 25 in. x 20 in. x 4 in. Air Filter MERV 8 BA4-2025-8 - The Home Depot
Columbia Merv 8 Air Filter | All Seasons Heating and Cooling
14x20x1 Merv 8 Pleated AC Furnace Filter - Case of 6