The MG400 filter from Koch Filter Corp is designed for high-efficiency air filtration, measuring 18x72-75 inches. This filter features a 3-link design that optimizes airflow while effectively capturing airborne contaminants. Made from durable materials, it ensures long-lasting performance in both commercial and residential applications. Each carton contains 8 filters, providing a cost-effective solution for maintaining clean air. The MG400 complies with industry standards for filtration efficiency, ensuring compatibility with standard HVAC systems.