The MG400 filter, sized 16x50-52, is a high-performance air filter pad from Koch Filter Corp, packaged in sets of 12. This filter is engineered for superior dust and particulate capture, making it suitable for a variety of HVAC systems. Its dimensions allow for a snug fit in standard filter housings, while the 2-link design enhances airflow and efficiency. Constructed from high-quality materials, the MG400 meets industry standards for filtration, ensuring long-lasting performance and improved air quality in both commercial and residential environments.