The 1" x 3-1/2" Black Nipple by Boshart Industries is a versatile plumbing component made from durable black steel. This nipple features standard NPT threads for easy installation and compatibility with a variety of fittings. Its robust construction ensures long-lasting performance, making it suitable for both residential and commercial applications. The black finish not only enhances its durability but also provides protection against corrosion. Ideal for water supply lines, HVAC systems, and more, this nipple is a dependable choice for any plumbing project.