The PerfectPleat HC M8 filter from AAF International measures 12-1/2" x 40-1/2" x 1" and is engineered for superior air filtration. This high-efficiency filter utilizes a pleated design to maximize surface area, enhancing dust capture and airflow. With an M8 rating, it effectively traps airborne contaminants, ensuring a healthier indoor environment. Constructed from high-quality materials, it complies with industry standards for air quality. This filter is suitable for a variety of HVAC systems, providing easy installation and maintenance for optimal performance in both commercial and industrial settings.