The PERFECTPLEAT HC M8 19-1/2x28x1 by AAF International is a high-efficiency air filter designed for superior filtration in HVAC systems. Measuring 19-1/2x28 inches with a thickness of 1 inch, this filter is engineered to capture a wide range of airborne contaminants. Its pleated design increases surface area, enhancing airflow and efficiency. Constructed from high-quality materials, the filter ensures durability and compliance with industry standards. Ideal for commercial and industrial applications, the PERFECTPLEAT HC M8 is easy to install and replace, making it a reliable choice for maintaining air quality.