The BOSHART INDUSTRIES INC 4" x 7" Black Nipple is a durable fitting designed for connecting two pipes in plumbing and HVAC applications. Made from high-quality materials, this nipple ensures long-lasting performance and resistance to corrosion. With a length of 7 inches and a diameter of 4 inches, it is suitable for a variety of installations, providing a secure and leak-free connection. This black nipple meets industry standards for safety and reliability, making it ideal for both residential and commercial use. Enhance your plumbing projects with this essential black nipple fitting.