The KOCH FILTER CORP MG200 is a high-efficiency air filter measuring 20x48-51 inches. This filter is engineered to provide superior filtration for HVAC systems, capturing dust, pollen, and other allergens effectively. Its robust construction meets industry standards for performance and durability. The MG200 is designed for optimal airflow while maintaining a high MERV rating, making it an excellent choice for improving indoor air quality in homes and businesses alike. Available in a pack of 8, it offers great value for maintaining clean air.