Introducing the Donaldson primary air filter, a reliable choice for heavy-duty engine applications. Crafted with high-efficiency cellulose media, this filter excels in various demanding conditions. Its corrosion-resistant, coated steel liners provide robust support to the media, ensuring maximum airflow efficiency. The innovative Pleatloc feature maintains uniform pleat spacing, preventing media from bunching and promoting an extended service life. Measuring 7 inches in length, with an inside diameter of 1.79 inches and an outside diameter of 3.28 inches, this filter meets ISO 5011 standards, ensuring quality and performance.