Before braided stainless there was rubber hose. Rubberhose, although perfectly adequate for most automotive plumbing requirements (fuel, water, vacuum, tranny fluid, and other low-pressure substances) ...

Rigid steel tubing with flare and inverted flare fittings is the form of plumbing used on most vehicles. Fuel lines, brake lines, automatic transmission cooler lines and even some air-conditioning ...

The latest fluid connectors deliver leak-free performance and long life despite shock, vibration, and extreme pressures. • 37° flare fittings are the most widely used, but they're not always the best ...