Introducing the Donaldson primary air filter, meticulously engineered to excel in heavy-duty engine applications. Its high-efficiency cellulose media ensures consistent performance across a wide spectrum of scenarios. The corrosion-resistant, coated steel liners provide crucial support to the media during operation, optimizing airflow for enhanced efficiency. The innovative Pleatloc feature ensures uniform pleat spacing, preventing media from bunching and ultimately promoting a longer service life. This filter, proudly bearing the Donaldson brand, meets ISO 5011 standards, assuring you of its quality and reliability. With dimensions of 15.51 inches in length, 6.04 inches in inside diameter, and 10.41 inches in outside diameter, it's meticulously crafted to meet the demands of heavy-duty engines.