Introducing the Donaldson primary air filter, meticulously engineered to elevate heavy-duty engine performance. Its high-efficiency cellulose media ensures reliable filtration across a diverse range of applications, providing essential support to your equipment. The corrosion-resistant, coated steel liners work in harmony with the media, facilitating maximum airflow for optimal efficiency. The innovative Pleatloc feature maintains consistent pleat spacing, preventing media bunching and contributing to a longer service life. This filter proudly meets ISO 5011 standards, a testament to its quality and effectiveness. With dimensions of 3.27 inches in length, 6.61 inches inside diameter, and 8.11 inches outside diameter, it integrates seamlessly into your system, offering a reliable solution for primary air filtration.