The 3" x 4" Black Iron Nipple from Braxton Harris is a high-quality plumbing fitting designed for durability and strength. Made from robust black iron, this nipple is ideal for various applications, including gas and water lines. Its dimensions of 3 inches by 4 inches ensure compatibility with standard plumbing systems, making it a versatile choice for both residential and commercial projects. The black iron construction provides excellent resistance to corrosion, ensuring a long-lasting performance. This nipple is perfect for connecting pipes in a variety of configurations, making it an essential component for any plumbing installation.