The 3-1/2" x Close Black Iron Nipple by Braxton Harris is a robust fitting designed for various plumbing and industrial applications. Constructed from high-strength black iron, this nipple is ideal for use in gas, water, and oil lines. Its close design allows for minimal space usage while ensuring a tight seal. This product meets ANSI standards for quality and safety, making it suitable for both residential and commercial installations. With its durable construction, this nipple is built to withstand high pressure and temperature, ensuring long-lasting performance.