Introducing the Donaldson primary air filter, meticulously crafted to meet ISO 5011 standards, ensuring exceptional performance and reliability. Engineered with high-efficiency cellulose media, this filter excels in a wide array of heavy-duty engine applications. Its corrosion-resistant, coated steel liners provide crucial support during operation, helping to maximize airflow and optimize performance. The innovative Pleatloc feature ensures uniform pleat spacing, preventing media from bunching and promoting an extended service life. With dimensions measuring 22.06 inches in length, 7.48 inches inside diameter, and 13.84 inches outside diameter, this filter ensures a precise fit for a variety of systems, making it an indispensable choice for discerning users.