These dark-hued, iron-based conduits, commonly available at national home improvement retailers, are frequently employed in gas and water conveyance systems. For example, a homeowner might use these components to extend a natural gas line to an outdoor grill or to repair a section of damaged plumbing within the house.
The significance of these materials lies in their robust construction and resistance to high pressures. Historically, they provided a durable and cost-effective solution for fluid transport. Their widespread availability and relative ease of installation contribute to their continued popularity among both professionals and do-it-yourselfers.