Introducing the Donaldson primary air filter, a reliable solution designed to excel in heavy-duty engine applications. Crafted with high-efficiency cellulose media, this filter ensures optimal performance across a wide range of demanding conditions. The filter is fortified with corrosion-resistant, coated steel liners that not only bolster media integrity during operation but also enhance airflow efficiency. The innovative Pleatloc feature ensures consistent pleat spacing, preventing media from bunching and thereby promoting an extended service life. With a length of 10 inches, an inside diameter of 2.48 inches, and an outside diameter of 4.09 inches, this filter meets ISO 5011 standards, ensuring performance you can rely on.