Introducing the Donaldson RadialSeal primary air filter, meticulously engineered to elevate the performance of heavy-duty engines. Its high-efficiency cellulose media ensures superior filtration without compromise, catering to a diverse range of applications. Reinforced by corrosion-resistant, coated steel liners, this filter provides unwavering 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 its service life. Rest assured, this filter adheres to ISO 5011 standards, underscoring its quality and reliability. With precise dimensions of 20.00 inches in length, 6.50 inches in inside diameter, and 10.86 inches in outside diameter, trust in the Donaldson RadialSeal brand for reliable filtration excellence.