The Donaldson 3.39" Spin-On Full Flow Lube Filter is designed to provide maximum engine protection and reduce operating costs. This filter features a double the contaminant carrying capacity of standard cellulose filters for much longer life, and removes more than 99% of contaminants that are 40 microns or larger. It also features Heavy Duty long life seals to support extended service life and delivers lower restriction to provide maximum oil flow and lubrication. With this filter, you can be sure that your engine is getting the best protection and performance possible. FleetPride is your First Click in Heavy Duty®.