The JT&T Products 148F 14 AWG Brown Primary Wire is built to accommodate extreme temperatures. This stranded, annealed copper wire is composed of a single conductor that is housed within general-purpose thermoplastic (GPT) insulation. The exterior is smooth and resists oil, grease and corrosive materials. Use the automotive electrical wire for a wide range of professional jobs, as well as do-it-yourself installations and repairs. It’s easy to store in a garage, the back of a truck or a utility vehicle for convenient access.