Introducing the Donaldson Extended Life primary air filter, a trusted solution engineered to enhance heavy-duty engine performance. Its high-efficiency cellulose media ensures reliable operation across a diverse range of demanding applications. The filter's corrosion-resistant, coated steel liners provide crucial 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 24.03 inches in length, 8.38 inches in inside diameter, and 12.74 inches in outside diameter, this filter adheres to ISO 5011 standards, making it a dependable option for your engine's filtration needs.