The 4" FPT Standard Black Merchant Coupling is a heavy-duty plumbing fitting designed for reliable connections in various piping systems. Made from durable black iron, this coupling features a 4" female pipe thread (FPT) connection, ensuring compatibility with standard plumbing applications. Its robust construction provides excellent resistance to corrosion and wear, making it suitable for both residential and commercial use. This coupling meets industry standards for safety and reliability, ensuring a secure fit that prevents leaks. Trust Braxton Harris Company for your plumbing needs.