The 1-1/2" x 4-1/2" Black Iron Nipple from Braxton Harris Co Inc is designed for connecting pipes in plumbing and gas systems. Constructed from high-quality black iron, this nipple provides excellent strength and durability, making it suitable for high-pressure applications. Its 1-1/2" diameter ensures compatibility with standard pipe sizes, making it a versatile choice for various installations. This product complies with industry standards, ensuring reliability and performance in your piping systems.