The SEALFAST 2 1/2" F NST X 3/4" M NPT fitting is designed for reliable connections in various plumbing and irrigation applications. This durable fitting features a female National Standard Thread (NST) on one end and a male National Pipe Thread (NPT) on the other, ensuring compatibility with standard piping systems. Constructed from high-quality materials, it offers excellent resistance to corrosion and wear, making it suitable for both indoor and outdoor use. With precise dimensions, this fitting is ideal for connecting hoses and pipes in fire protection systems, water supply lines, and more.