12 Pack of Replacement Air Filters for 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 element is thicker than the , designed for updated compatibility while fitting within the existing frame. 100% guaranteed compatible replacement for Electric MAC-2300FT-E and MAC-3000FT-E filters. The upgraded filter maintains compatibility and allows direct replacement of the filter element. Enhanced construction improves fit and performance with the existing filter frame. Black Carbon Filter: Utilizes carbon adhesion technology to help capture airborne odors and certain indoor air pollutants, supporting cleaner air conditioner operation. Extended Filter Life: Features a blue filter layer produced through high-temperature oxidation. Dissolving enzyme is bonded to the fiber layer for long-lasting performance, contributing to extended filter lifespan. Recommended replacement every six months. The activated carbon layer is designed for long-term deodorizing efficiency and improved filtration compared to traditional filters with larger pores and reduced effectiveness. Includes 4 lytic enzyme filters and 4 activated carbon filters. High-density, seamless design helps maintain consistent filtration performance. Blue filter layer contains dissolving enzymes and a pure layer, enhanced by oxidation ions for improved durability and function.