Equip your semi truck to be Ready for the Road Ahead , with the Prima Brake Components Alcohol Evaporator Air Brake System, a key device that keeps air lines free of ice. With a sophisticated design, this replacement device works to dispense a small amount of alcohol chemicals into the air brake system to prevent the moisture from freezing. Manufactured with a universal design to be compatible with all air brake systems. FleetPride is your First Click in Heavy Duty .