Introducing the Donaldson safety air filter, meticulously engineered to adhere to ISO 5011 standards. This filter boasts a range of crucial features. Firstly, it serves as an invaluable backup in case of primary filter damage or incorrect installation, providing an extra layer of protection for your engine. Secondly, it acts as a formidable barrier, preventing contaminants from infiltrating the clean side of your air intake system during primary filter maintenance. Additionally, the filter is designed to swiftly plug in the event of contamination breach, serving as an immediate alert for operators. With an actual height of 1.57 inches and an outside diameter of 9.38 inches, this filter stands as a reliable safeguard for your engine.