​Features： *Made of high quality material, durable and practical to use. *Exquisite and delicate, highly matched with original equipment *To fit for Honeywell HRF-A300 / HPA300 series air purifiers. Filter Measures: 14.25” x 17.25”. Compatible with: for Honeywell HPA300, HRF-A300, Pre-filter A & HRF-AP1 series air purifiers. *Trap foul odors, dust, dander, pet hair and other airborne particles. *Keep your carbon filters fresh and clean until you are ready for a change! We recommend changing carbon filters every 1-2 months based on use. Package Contents: 4x carbon filters Compatible with Honeywell A Filter for HPA300 - 4 premium activated carbon HPA300 HEPA filter replacement compatible with Honeywell air purifier pre filter Type A and HPA300 Honeywell pre-filter. Filter Out More Airborne Irritants with Pre Filters for Honeywell Air Purifiers - Combat dust, pollen, pet dander, smoke,and other particles by placing a Durabasics replacement for Honeywell purifier pre filter in front of your compatible Honeywell HEPA filter. Designed For Ease And Effectiveness - Each pre filter Honeywell air purifier is precision cut for Honeywell pre filters for air purifier models Honeywell HPA 300, HA300. Maximize Your HEPA Filter's Life - By placing our pre-filter compatible with Honeywell pre filter A in front of your HEPA filter Honeywell pre, you save money by reducing the amount of dust and particles that reach your filters and extending its life. 4Pcs HEPA Filters Replacement for Honeywell HPA300 Series Air Purifiers,Carbon Pre-filter for Honeywell Air Purifier.