The 8" 150# Black Malleable Iron Cap from Service Metal Products is designed for high-pressure applications, ensuring durability and reliability. This cap is made from high-quality black malleable iron, providing excellent resistance to corrosion and wear. With a pressure rating of 150#, it is suitable for various plumbing and industrial applications. The cap features a standard NPT connection, making it compatible with a wide range of piping systems. Ideal for use in water, gas, and air lines, this cap is a must-have for any professional or DIY project.