Discover the Donaldson primary air filter, meticulously designed for heavy-duty engine applications. Engineered with high-efficiency cellulose media, it delivers exceptional performance across a diverse range of scenarios. The filter's corrosion-resistant steel liners, coated for added durability, provide crucial support during operation, optimizing airflow for enhanced efficiency. The innovative Pleatloc feature ensures consistent pleat spacing, preventing media bunching and significantly extending its service life. This filter proudly complies with ISO 5011 standards, setting a benchmark for industry excellence. With an impressive 24-inch length, 7.72-inch inside diameter, and an outer diameter of 12.09 inches, it embodies reliability and performance.