The Donaldson safety air filter is your reliable backup solution, ready to step in should primary filter damage or improper installation occur. Its primary function is to safeguard the clean side of the air intake system during primary filter servicing, ensuring contaminants are kept at bay. Engineered for swift response, it plugs rapidly if any contamination bypasses the primary filter, providing a clear alert to operators, ensuring timely intervention. With ISO 5011 standards and precise dimensions of 16.21 inches in length, 3.7 inches in inside diameter, and 5.3 inches in outside diameter, this safety filter is designed to meet high standards in air filtration.