The Donaldson 12.13" Spin-On Full Flow Lube Filter is designed to deliver maximum oil flow and lubrication with lower restriction. It has double the contaminant carrying capacity of standard cellulose filters, removing more than 99% of contaminants that are 21 microns or larger. This filter also features Heavy Duty long life seals to support extended service life, increasing engine protection and reducing operating costs. FleetPride is your First Click in Heavy Duty®.