This comprehensive filter replacement combo delivers complete maintenance coverage for your Mitsubishi ductless system. The package includes four precision-engineered filters: two U01-A01-100 units (14" x 12-3/8") designed for primary air filtration, and two MAC-408FT-E filters (8-1/4" x 1-1/2") for odor purification. Together, these components ensure optimal airflow, enhanced indoor air quality, and sustained system efficiency. By replacing filters as a coordinated set, you maintain peak performance while minimizing downtime. Ideal for scheduled maintenance or emergency replacements, this combo offers exceptional value and convenience for discerning homeowners seeking reliable climate control solutions. This total unit replacement pack contains 4 filters; 2- U01-A01-100. Dimensions: 14" x 12-3/8" 2- MAC-408FT-E. Dimensions: 8-1/4" x 1-1/2" These filters fit the following indoor unit model numbers: MSZ-GL06NA-U1, MSZ-GL09NA-U1 MSZ-GL12NA-U1, MSZ-GL15NA-U1 MSY-GL09NA-U1, MSY-GL12NA-U1, MSY-GL15NA-U1