‘The Brake Brainteaser Milton ® is designed + Max Pressure: 150 PS! 1o dissolve ice crystals in the air brake lines. + Max Low Temp: -40°F (40°C) It can be used to release already frozen brakes and can per-troat tailors to reduce the risk of frozen air brake lines. Great for use with semi-trallers, flatbeds, or any other trailer with an air brake system.