Which material is known for durability and is often used in heavy-duty plumbing installations?

Galvanized iron is known for its exceptional durability and strength, making it a preferred choice for heavy-duty plumbing installations. This material is coated with a layer of zinc to prevent rust and corrosion, which significantly extends its lifespan, especially in situations where it may be exposed to moisture. Its ability to withstand high-pressure water systems and heavy usage environments contributes to its widespread application in plumbing, particularly in settings like commercial buildings and industrial facilities.

In contrast, ABS plastic, while it is lightweight and resistant to certain chemicals, lacks the same strength and durability under high-pressure conditions. PVC is also used in plumbing applications due to its resistance to corrosion and low cost, but it is typically better suited for low-pressure situations. Polypropylene offers good chemical resistance but is not as robust as galvanized iron for heavy-duty applications. Thus, galvanized iron is often favored when durability and robustness are critical requirements.