The 12FS(5/8-18)-12MJ(9/16-18) Str. from Fittings Unlimited Inc is a specialized fitting designed for fluid transfer in various applications. This fitting features a 12FS connection with a 5/8-18 thread and a 12MJ connection with a 9/16-18 thread, ensuring compatibility with standard piping systems. Made from high-quality materials, it is built to withstand pressure and temperature variations. Its design allows for easy installation and secure connections, making it suitable for both residential and commercial use. This fitting complies with industry standards, ensuring reliable performance.