Discover the Donaldson primary air filter, meticulously engineered for heavy-duty engine applications. This filter boasts high-efficiency cellulose media that performs reliably across a wide spectrum of tasks without making any extravagant claims. The corrosion-resistant, coated steel liners provide essential support to the media during operation, maximizing airflow efficiency. Thanks to the innovative Pleatloc feature, you can count on uniform pleat spacing, ensuring the media stays clear of any bunching, which in turn promotes a longer service life. Compliant with ISO 5011 standards, this filter stands as a testament to precision and reliability. With dimensions of 3.11 inches in length, 2.72 inches inside diameter, and 3.86 inches outside diameter, it offers a tailored fit for your filtration needs.