The DUO PAK 40 is a 1-ply air filter with dimensions of 20x24x11 inches, crafted by Koch Filter Corp. This filter is engineered for effective air filtration in various HVAC systems, providing reliable performance. Its lightweight design allows for easy handling and installation. The filter is sold individually, making it a practical choice for those needing a single replacement. With its quality construction, the DUO PAK 40 meets industry standards, ensuring that your indoor air remains clean and healthy.
