This 5?inch aluminized exhaust tubing sold by the foot gives you a flexible way to build or repair heavy?duty exhaust systems using straight sections of aluminized steel with a 5? outer diameter. You can order the length you need in continuous segments such as 12?, 36?, 72?, or 120? pieces, each sold individually and backed by a warranty against defects in workmanship and materials from the date of purchase. These tubes are high?quality aftermarket replacement parts rather than OEM components, and the aluminized finish helps extend service life in exhaust environments where heat and moisture are present.