Introducing the Donaldson primary air filter, featuring high-efficiency cellulose media designed for heavy-duty engine applications. Supported by corrosion-resistant, coated steel liners, this filter maximizes airflow and ensures durability. The Pleatloc feature maintains uniform pleat spacing, prolonging its service life. Compliant with ISO 5011 standards, With dimensions of 2.87 inches in length, 3.50 inches in inside diameter, and 5.91 inches in outside diameter, it's a dependable choice for your engine.