The DUO PAK 40 2 PLY filter measures 20x20x12 inches and is designed for high-efficiency air filtration. Manufactured by Koch Filter Corp, this filter features a dual-layer construction that enhances its dust-holding capacity and extends service life. Ideal for HVAC systems, it meets industry standards for air quality and performance. Each carton contains 5 filters, making it a cost-effective solution for maintaining clean air in commercial and residential applications.
