DFS Ultrafine Annual Filter Set
Complete set of Ultrafine 468 replacement filters, for one year of use. Based on typical use, we recommend replacing the pre-filter and post-filter every 6 months, and the main filter every 12 months. Please visit our knowledge base for directions on how to replace your filters.
Contains: (2) volatile organic compounds (VOCs) pre-filters, (2) VOC post-filters, and (1) main filter.