Introducing the Donaldson primary air filter, a testament to high-efficiency filtration. Crafted with precision, its cellulose media performs flawlessly across a diverse range of heavy-duty engine applications. The filter's corrosion-resistant, coated steel liners provide steadfast support during operation, optimizing airflow for enhanced performance. With the innovative Pleatloc feature, you're ensured uniform pleat spacing, preventing media bunching and extending the filter's service life. This exceptional filter meets ISO 5011 standards, boasting a length of 19.13 inches, an inside diameter of 5.2 inches, and an outside diameter of 9.53 inches.