The MG300 filter, sized 25x84-91, comes in a carton of 3 and is produced by Koch Filter Corp. This filter is designed for high-efficiency air filtration, capturing a wide range of airborne contaminants. Its robust construction ensures durability and longevity, making it suitable for demanding HVAC applications. The 7-LNK design allows for easy installation and compatibility with various systems. With a focus on performance, the MG300 filter meets industry standards, ensuring effective air quality management in both commercial and residential environments.