Introducing the Donaldson primary air filter, a dependable choice designed to excel in a wide array of heavy-duty engine applications. With a substantial length of 16 inches, an inside diameter of 12.02 inches, and an outside diameter of 16.62 inches, this filter is engineered with high-efficiency cellulose media, ensuring efficient filtration in line with ISO 5011 standards. The corrosion-resistant, coated steel liners provide vital support to the media during operation, facilitating maximum airflow for enhanced engine performance. Notably, the Pleatloc feature ensures uniform pleat spacing, preventing media from bunching and ultimately extending the filter's service life.