The MG300 PNL 20W X 20L w/ Carbon by Koch Filter Corp is a high-efficiency air filter panel designed for optimal filtration. Measuring 20 inches by 20 inches, this filter features a carbon layer that enhances its ability to capture odors and airborne contaminants. Packaged in sets of 24, it is ideal for various HVAC applications. The filter's robust construction ensures durability and compliance with industry standards, providing reliable performance. Its lightweight design allows for easy installation and replacement, making it a practical choice for maintaining clean air in both residential and commercial settings.