Also known as air brake hose, this hose safely powers brakes in semitrucks, trailers, and other vehicles with compressed air. It meets D.O.T. and SAE testing, performance, and dimensional standards for use in vehicle brake systems. It can also be used in hydraulic, diesel fuel, and coolant systems. Reinforced with braided steel wire and braided fiber, it won’t lose its shape under pressure. A layer of braided fiber also protects the outside of the hose from weather and ozone. This hose is compatible with screw-on fittings, so there’s no need for a crimper. All you need is a vise and a wrench to make hose assemblies in the field.