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 upgraded filter maintains compatibility and allows direct replacement of the filter element. The new filter element is thicker than the , ensuring better fit and performance. Guaranteed compatible replacement for Mitsubishi Electric MAC-2330FT-E and MAC-3000FT-E filters. Increasing the dissolving enzyme layer enhances filtration efficiency and improves overall compatibility with the filter frame. Black carbon filter: Utilizes carbon adhesion technology to help capture airborne odors and harmful substances, contributing to cleaner indoor air quality. Long-lasting performance: Blue filter features activated carbon and is produced through high-temperature oxidation. The dissolving enzyme is securely bonded to the fiber layer, providing sustained performance and extended service life. Designed for durability and consistent filtration efficiency. Recommended replacement every six months. The high-temperature ionic sticky carbon technology ensures long-term deodorizing effectiveness and improved filtration compared to traditional filters with large pores and reduced performance. Includes 4 lytic enzyme filters and 4 activated carbon filters. High-density seamless belt design with dissolving enzyme layer. Blue filter composed of dissolving enzymes and a pure layer, enhanced by oxidation ions for improved air purification.