Brass fittings are commonly used in copper pipe and plumbing systems because of their rust-resistance, hardness, durability, and flexibility. Brass plumbing fittings can be used to help pipes transport natural gas, potable water, fuel, propane, gasoline, and other materials; in automobiles and boats for hydraulics, antifreeze, air brakes, fuel lines, and hoses; and other applications by plumbers, mechanics, and manufacturers. Use brass compression fittings for cold and hot water faucets or toilet stop valves. Add brass hose fittings, such as union tees, street elbows, brass couplings, and crosses, to redirect pipe flow. Choose brass pipe fittings by basic fitting shape, basic fitting material, temperature range, fitting connection type, and max pressure. Or shop other plumbing fittings by material, including: copper fittings, bronze fittings, and stainless steel fittings.