Product Details: The Bendix AD-IP® PuraGuard® Oil Coalescing Air Dryer is the perfect solution to make sure your heavy duty trucks are Ready for the Road Ahead® with dry, compressed air that efficiently actuates braking systems and operation. With the help of an internal desiccant, this air dryer filters moisture from compressed air before it can reach your wet and supply tanks. The oil coalescing cartridge then works to remove dirt, oils, and aerosols so they don't make their way into your air supply. As a result, your brake system experiences far less wear and tear, leading to extended use time. Symptoms of an air dryer in need of replacement include leaking air, blocked purge valves, or poor-performing condensers that are unable to receive built pressure. FleetPride is your First Click in Heavy Duty®.