Introducing the Donaldson RadialSeal primary air filter, meticulously engineered to enhance the performance of heavy-duty engines. Its high-efficiency cellulose media ensures superior filtration across a wide range of applications. Supported by corrosion-resistant, coated steel liners, this filter provides steadfast support to the media during operation, optimizing airflow for peak efficiency. The innovative Pleatloc feature ensures uniform pleat spacing, preventing media from bunching and significantly extending the filter's service life. Compliant with ISO 5011 standards, this filter exemplifies quality and reliability. With precise measurements of 12.80 inches in length, 2.83 inches in inside diameter, and 5.83 inches in outside diameter, trust in the Donaldson RadialSeal brand for reliable filtration excellence.