The Arctic Air Brake is certified to meet SAE J1402- and D.O.T. F.M.V.S.S. 106-standards. It is made of a synthetic rubber tube cover and reinforced by spiral polyester cord to give it high performance strength. The Arctic Air Brake can withstand up to 200 PSI and temperatures between -54C - 93C. These brake lines are ideal for keeping your vehicle's brakes efficient and safe in cold weather. It is for use in truck and trailer air brake systems. It measures 250 x 3/8 x 3/4 inches.