The MG200 filter, sized 20x50-522-20X25, is a carbon-enhanced air filter from Koch Filter Corp, available in packs of 12. This filter is designed for high-efficiency air filtration, effectively capturing odors and airborne particles. Made from advanced materials, it meets industry standards for performance and reliability. The carbon layer enhances its ability to neutralize unpleasant smells, making it ideal for both residential and commercial HVAC applications. Easy to install, the MG200 is a practical choice for maintaining superior air quality.