The Donaldson Primary Konepac Air Filter is a top-of-the-line air filter designed to provide superior performance and protection for heavy duty engines. With its axial seal filter type, round shape, and flame retardant media type, this air filter is built to withstand even the toughest conditions. Measuring 267.00 mm in length, the Donaldson Air Filter is made with high efficiency cellulose media that performs exceptionally well across a wide range of heavy duty engine applications. This media type is also flame retardant, ensuring that your engine is protected from potential fires caused by sparks or other sources of ignition. In addition to its superior filtration capabilities, the Donaldson Air Filter is also corrosion resistant, ensuring that it will last . The Pleatloc feature of this air filter ensures uniform pleat spacing, which helps to maximize airflow and improve engine performance. Overall, Its a excellent choice for anyone looking to protect their heavy duty engine from harmful contaminants and ensure optimal performance. With its high efficiency cellulose media, flame retardant properties, and corrosion resistance, this air filter is sure to provide reliable and long-lasting protection for your engine. FleetPride is your First Click in Heavy Duty®.