20x20x1 Honeywell FC40R1003 MERV 11 Aftermarket Replacement FilterHWR20204M11 $146.20 SKU: HWR20204M11 Back $146.20 Quantity -+ Add to Cart Details 20x20x1 Honeywell FC40R1003 MERV 11 Aftermarket Replacement Filter DetailsBackDetails20x20x1 Honeywell FC40R1003 MERV 11 Aftermarket Replacement FilterSee MoreSee Less