Introducing the Donaldson Extended Life primary air filter, a trusted solution crafted to enhance heavy-duty engine performance. Its high-efficiency cellulose media ensures reliable operation across a wide range of demanding applications. The filter's corrosion-resistant, coated steel liners provide essential support, optimizing airflow for improved efficiency. Additionally, the innovative Pleatloc feature maintains uniform pleat spacing, preventing media from bunching and promoting a longer service life. With precise measurements of 19.03 inches in length, 12.22 inches in inside diameter, and 17.58 inches in outside diameter, this filter adheres to ISO 5011 standards, making it a reliable choice for your engine's filtration needs.