Introducing the Donaldson primary air filter, meticulously engineered to excel in heavy-duty engine applications. Its high-efficiency cellulose media ensures effective filtration without compromising airflow. Supported by corrosion-resistant, coated steel liners, this filter maximizes airflow efficiency, ensuring optimal operation. The innovative Pleatloc feature maintains uniform pleat spacing, preventing media from bunching and thereby promoting a longer service life. With ISO 5011 certification, you can trust in the performance and quality that Donaldson consistently delivers. This filter measures 10.98 inches in length, with an inside diameter of 2.52 inches and an outside diameter of 5.24 inches.