Filtration grade: MERV-11, which can filter 90% of 3-10 μm particles and 85% of 1μm particles.
Easy Installation: The frame includes easy-to-understand arrows to help identify airflow direction and how the filter needs to be placed later, making installation easy.
Includes: 4-Pack. Dimensions: 16.5" x 9.5" x 1.75". Model: FA550A001
Compatibility: Designed to fit KINGMASTER F12 and KINGMASTER F12D air filtration systems.
NOTE: For optimum system performance, replace the filter within 4-5 months. (Filter changes may be required more frequently in dirty environments.)
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