Equip your semi to be Ready for the Road Ahead™, with the Haldex MTC Desiccant Air Dryer Cartridge for DRYest™, ModulAir® Air Dryer, a crucial element that provides clean and dry pneumatic systems to optimize air brake performance. Due to its tight-filtering design, this replacement filter is able to remove dust, oil, dirt, and other contaminants from the air lines to defend against corrosion, ice formation, and potential valve damage. Constructed with sturdy materials to endure demanding operating conditions such as high temperatures and rough vibrations. FleetPride is your First Click in Heavy Duty®.