The KOCH FILTER CORP MG300 20x480-500 air filter is engineered for high-performance filtration. Measuring 20x480 inches, this filter is perfect for large HVAC systems requiring extensive coverage. It features a multi-layer design that effectively traps dust, pollen, and other airborne contaminants. The filter is packaged with 1 unit per carton, ensuring convenience for installation. Its durable construction meets industry standards, making it suitable for both commercial and industrial applications. Enhance your air quality with this efficient filtration solution.