The Haldex AD-SP Series Air Dryer is a reliable and cost-effective solution for your air brake system. This desiccant-type in-line filtration system effectively removes even the smallest oil particles, ensuring that your air brake system is always running at peak performance. The automatic drain valve is controlled by the governor, so you can be sure that the air dryer is always working as it should. This air dryer is built to withstand even the harshest operating conditions, making it a great choice for any application. With a 1/2" delivery and 1/4" control, this air dryer is easy to install and maintain. FleetPride is your First Click in Heavy Duty®.