The MICROMAX NHM 80/85 20x20x2 by Koch Filter Corp is a high-efficiency air filter designed for optimal performance in HVAC systems. Measuring 20 inches by 20 inches with a thickness of 2 inches, this filter is engineered to capture fine particles and allergens effectively. It features a durable construction that ensures longevity and reliability. The MICROMAX filter complies with industry standards, making it suitable for both commercial and residential applications. This product enhances indoor air quality, providing a healthier environment.