BOSHART INDUSTRIES INC offers the 4" x 5-1/2" Black Nipple, engineered for high-performance plumbing applications. Constructed from premium black steel, this nipple provides exceptional durability and corrosion resistance. With a nominal size of 4 inches by 5-1/2 inches, it is perfect for connecting pipes in various systems. The threaded ends ensure a secure and leak-free connection, making it suitable for both residential and commercial plumbing needs. This product adheres to industry standards, guaranteeing reliability and quality in your plumbing installations.