The 6" X 4" Adapter X Female NPT Aluminum from SEALFAST is a high-quality fitting designed for seamless connections in piping systems. This adapter features a 6-inch diameter and a 4-inch female NPT thread, ensuring compatibility with various plumbing applications. Constructed from durable aluminum, it offers excellent corrosion resistance and strength, making it suitable for both indoor and outdoor use. This product adheres to industry standards, ensuring reliable performance in demanding environments. Ideal for fluid transfer and air applications, this adapter is a must-have for any professional toolkit.