The MG400 20x100-104 4-LNK filter by Koch Filter Corp is designed for high-efficiency air filtration. Measuring 20x25 inches, this filter is ideal for various HVAC applications. It features a robust construction that ensures durability and optimal performance. Each carton contains 6 units, making it a cost-effective choice for large-scale operations. The filter meets industry standards for air quality, ensuring compliance with ISO regulations. Its design allows for easy installation and replacement, making it suitable for both commercial and residential use.