14''x49.25'' Funk Filter Replacement Pre-Filters Funk Filter Replacement pre-filters drastically improve the longevity of your filters life. Pre-filters work by trapping dust, airborne particles, and other contaminates. Pre-filters are individually sealed in plastic bags for cleanliness. $25.90
8''x40'' Funk Filter Replacement Pre-Filters Funk Filter Replacement pre-filters drastically improve the longevity of your filters life. Pre-filters work by trapping dust, airborne particles, and other contaminates. Pre-filters are individually sealed in plastic bags for cleanliness. $15.90
8''x24'' Funk Filter Replacement Pre-Filters Funk Filter Replacement pre-filters drastically improve the longevity of your filters life. Pre-filters work by trapping dust, airborne particles, and other contaminates. Pre-filters are individually sealed in plastic bags for cleanliness. $11.90
6''x24'' Funk Filter Replacement Pre-Filters Funk Filter Replacement pre-filters drastically improve the longevity of your filters life. Pre-filters work by trapping dust, airborne particles, and other contaminates. Pre-filters are individually sealed in plastic bags for cleanliness. $10.50
14''x40'' Funk Filter Replacement Pre-Filters Funk Filter Replacement pre-filters drastically improve the longevity of your filters life. Pre-filters work by trapping dust, airborne particles, and other contaminates. Pre-filters are individually sealed in plastic bags for cleanliness. $23.90
10''x24'' Funk Filter Replacement Pre-Filters Funk Filter Replacement pre-filters drastically improve the longevity of your filters life. Pre-filters work by trapping dust, airborne particles, and other contaminates. Pre-filters are individually sealed in plastic bags for cleanliness. $14.50