12 Pack of Replacement Air Filters for Mitsubishi Electric MAC-2300FT-E and MAC-3000FT-E Split Air Conditioners. NO FRAMES ARE INCLUDED. YOUR EXISTING WHITE INSERT FRAMES MUST BE INSTALLED WITH THESE FILTERS. Dimensions for filter media: 8.3 Inch x 1.9 Inch x 0.2 Inch (21 x 4.7 x 0.5 cm). When replacing, you only need to remove the filter element in the old frame and replace it with the new filter element. Replacement process is quick and easy. The new filter is thicker than the original, designed for direct replacement within the existing frame. 100% guaranteed compatible replacement for Mitsubishi Electric MAC-2300FT-E and MAC-3000FT-E filters. The upgraded filter maintains compatibility and allows direct replacement of the filter element. Improved thickness ensures better fit and performance within the original filter frame. Black Carbon Filter: Features carbon adhesion technology that helps capture airborne odors and certain contaminants, contributing to cleaner indoor air quality. Extended Filter Life: Blue filter material is produced through a high-temperature oxidation process. The enzyme layer is securely bonded to the fiber and designed not to shed, helping maintain filtration efficiency over time. Designed for long-lasting performance. Recommended replacement every six months under normal conditions. The activated carbon layer is engineered for extended use and consistent odor reduction, offering improved performance over traditional filter materials with larger pores and reduced efficiency. Includes 8 filters: 4 lytic enzyme filters and 4 activated carbon filters. High-density, seamless construction helps enhance filtration effectiveness. Blue filter layer contains dissolving enzymes and a pure fiber layer, combined with oxidation ions for improved performance.