The MEGAPLEAT MERV 9 air filter, measuring 20x20x4 inches, is a high-performance product from AAF International. This filter is designed to capture finer particles, including smoke and pet dander, making it ideal for environments requiring superior air quality. With its MERV 9 rating, it strikes a balance between filtration efficiency and airflow, ensuring optimal HVAC performance. Made from premium materials, this filter is built to last and fits standard filter frames. It meets rigorous industry standards, making it a reliable choice for both residential and commercial use.