B&K 3/8 In. Malleable Black Iron Coupling is a durable and strong pipe fitting made from malleable black iron, designed to connect two black iron pipes in a straight line. Known for its corrosion-resistant properties, this coupling ensures a secure and leak-proof connection, allowing for smooth and efficient flow of liquids or gases. It is i for various plumbing and industrial applications, able to withstand high pressures and temperatures. Suitable for both indoor and outdoor use, this coupling undergoes thorough inspection and quality testing to meet industry standards, ing long-lasting performance you can rely on. Model Number: 521-202BG