Introducing the Donaldson Extended Life primary air filter, a reliable choice designed to enhance heavy-duty engine performance. Its high-efficiency cellulose media ensures consistent operation across a wide range of demanding applications. The filter's corrosion-resistant, coated steel liners provide essential support, optimizing airflow for improved efficiency. The innovative Pleatloc feature maintains uniform pleat spacing, preventing media from bunching and extending the filter's service life. With precise measurements of 24.02 inches in length, 10.34 inches in inside diameter, and 14.68 inches in outside diameter, this filter meets the esteemed ISO 5011 standards, making it a dependable option for your engine's filtration requirements.