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. Compliant with ISO 5011 standards and proudly bearing the trusted Donaldson brand, you can rely on the quality and dependability of this filter. Measuring at 11.46 inches in length, 2.83 inches in inside diameter, and 5.43 inches in outside diameter, it's meticulously engineered to meet the demands of heavy-duty engines.