Experience superior filtration with the Donaldson RadialSeal primary air filter, meticulously crafted to meet ISO 5011 standards. This filter boasts high-efficiency cellulose media that excels in a wide range of heavy-duty engine applications. Its corrosion-resistant, coated steel liners provide crucial support during operation, maximizing airflow for optimal engine performance. The innovative Pleatloc feature ensures uniform pleat spacing, preventing media from bunching and promoting a longer service life. With a substantial length of 20.63 inches, an inside diameter of 6.99 inches, and an outside diameter of 12.34 inches, this filter is tailored for peak performance and longevity, ensuring the efficiency and durability of your engine.