The 4"x4-1/2" Extra Heavy Black Nipple from Service Metal Products is engineered for high-performance plumbing applications. Constructed from premium black steel, this nipple offers exceptional strength and durability, making it suitable for high-pressure systems. Its dimensions ensure compatibility with various fittings, providing a secure connection for fluid transfer. This product meets industry standards, ensuring reliability in both residential and commercial plumbing projects. Ideal for gas and water lines, this nipple is a versatile choice for any piping installation.