Introducing the Donaldson BLUE primary air filter, a reliable solution for high-dust applications. With an impressive efficiency of up to 99.99%, it provides superior protection. Its advanced Ultra-Web Nanofiber media ensures a longer filter life by efficiently shedding dust during equipment vibration, resulting in fewer changes and extended uptime. Engineered to excel in extreme temperature and humidity, this filter stands up to the harshest environments. Compliant with ISO 5011 standards, you can trust in its quality and performance. Measuring 22 inches in length, with an inside diameter of 8.38 inches and an outside diameter of 12.74 inches, it seamlessly integrates into a wide range of air cleaning systems.