This 4" x 4" Black Iron Nipple is designed for robust plumbing applications, providing a reliable connection in various piping systems. Made from high-quality black iron, it offers excellent durability and resistance to corrosion. Ideal for gas and water lines, this nipple meets industry standards for safety and performance. Its threaded ends ensure a secure fit, making installation straightforward. Suitable for both residential and commercial use, this product is essential for any plumbing project requiring dependable connections.