B&K 1-1/2 In. Malleable Black Iron Coupling is a durable and strong pipe fitting made from malleable black iron, i for a variety of plumbing and industrial uses. This coupling is designed to connect two black iron pipes in a straight line, providing a secure and leak-proof connection that ensures smooth and efficient flow of liquids or gases. Crafted to meet industry standards through thorough inspection and quality testing, it reliable performance. Known for its corrosion-resistant properties, black iron can withstand high pressures and temperatures, making this coupling suitable for both indoor and outdoor applications. Its long-lasting construction s dependable service in your plumbing system. Model Number: 521-207BG