Product Details: Equip your semi to be Ready for the Road Ahead™, with the Fleetguard Diesel Exhaust Urea Filter, a crucial element that provides clean diesel exhaust fluid. By utilizing a specialized design, this replacement filter works to remove contaminants from the DEF solution so that the selective catalytical reduction system can perform at optimal levels. Created with a solid and long-lasting design to reduce the frequency of change intervals. FleetPride is your First Click in Heavy Duty®.