The Donaldson Primary Round Air Filter is an excellent solution for heavy duty engine applications. Its axial seal filter type and round shape ensure a snug fit into your air cleaner housing and a tight seal. The filter media material is made of high-efficiency cellulose, which is strong and pliable, ensuring a longer filter life. The Donaldson Air Filter has more media pleats, which increase its dust holding capacity and extend its filter life. Additionally, the Pleatloc feature ensures uniform pleat spacing and prevents media from bunching, promoting longer service life. This air filter measures 520.70 mm in length, making it suitable for a wide range of heavy duty engine applications. Its superior filtration capabilities make it a top choice for anyone looking to improve their engine's performance. FleetPride is your First Click in Heavy Duty®.