Introducing the Donaldson safety air filter, a crucial safeguard for your engine's well-being. This filter serves as a reliable backup in case of primary filter damage or improper installation, ensuring uninterrupted performance. It acts as a formidable barrier, preventing contaminants from infiltrating the clean side of the air intake system during primary filter servicing, preserving the integrity of your engine. Engineered to plug rapidly in the event of any contamination bypassing the primary filter, it provides a vital alert for operators. Adhering to ISO 5011 standards, this Donaldson filter stands at 18.5 inches in length, with an inside diameter of 5.29 inches and an outside diameter of 6.39 inches.