Introducing the Donaldson safety air filter, your engine's reliable backup. In the event of primary filter damage or improper installation, this filter steps in seamlessly to ensure uninterrupted operation. Its primary role is to shield the clean side of the air intake system from contaminants during primary filter servicing, maintaining peak engine performance. What sets it apart is the rapid plugging feature, acting as an immediate alert system if contamination breaches the primary filter, enabling swift action. This filter proudly meets ISO 5011 standards, ensuring quality and adherence to industry norms. With a length of 13.37 inches, inside diameter of 2.3 inches, and outside diameter of 2.98 inches, it's meticulously engineered for efficiency and reliability.