The KOCH FILTER CORP MG200 MASTER LINK is a high-quality air filter measuring 12 inches wide by 25 inches long. This filter is designed for use in various HVAC systems, providing effective filtration of airborne contaminants. Its durable construction ensures long-lasting performance, making it suitable for both residential and commercial applications. Each carton contains one filter, making it a convenient choice for those looking to maintain air quality. This filter meets industry standards for efficiency and reliability, ensuring optimal airflow and reduced energy costs.