Rothenberger Steel Drain Test Plugs, measuring 6 inches, are essential for effective drainage testing in plumbing systems. Constructed from high-quality steel, these plugs ensure durability and resistance to corrosion, making them suitable for long-term use. Designed to create a watertight seal, they are perfect for testing drainage systems in residential and commercial applications. The plugs comply with industry standards, ensuring reliability and safety during testing procedures. Their robust design allows for easy installation and removal, making them a practical choice for plumbers and contractors.