The SEALFAST 1 1/2" F NST X 1 1/2" M NPT coupling is designed for versatile fluid transfer applications. This coupling features a female NST connection and a male NPT connection, ensuring compatibility with standard piping systems. Made from high-quality materials, it offers excellent durability and resistance to corrosion, making it suitable for various environments. The compact design allows for easy installation, while the secure connections ensure optimal performance in both low and high-pressure applications. Ideal for fire protection, irrigation, and industrial use.