B&K 1/2 In. Malleable Black Iron Cap is a reliable and durable plumbing fitting designed for various applications. Constructed from black malleable iron, this cap strength, longevity, and resistance to corrosion, making it i for both residential and commercial plumbing systems. It provides a secure and tight closure to prevent leaks and ensure the proper functioning of your plumbing system. The malleable black iron construction enhances the cap's durability and suitability for different environments, including high-pressure and high-temperature applications. Whether used in water supply systems, gas pipelines, or other plumbing installations, this cap delivers reliable performance and long-lasting protection. Model Number: 521-403BG