The Series 1601 Tee Male NPT x Female NPSM Swivel x Female NPSM Swivel adapters are robust carbon steel fittings designed to provide secure, leak-free connections in hydraulic and fluid power systems. These tee adapters feature a three-way design, with a male NPT (National Pipe Tapered) connection and two female NPSM (National Pipe Straight Mechanical) swivel connections, allowing for efficient fluid distribution or splitting within a system. The male NPT connection ensures a reliable, leak-proof seal through thread deformation, while the female NPSM swivel connections provide flexibility and ease of alignment during installation, ensuring secure connections. The difference between NPTF (National Pipe Tapered Fuel) and NPSM lies in the thread design—NPTF is designed for fuel and other sealed connections, while NPSM threads are straight, not tapered, and used for mechanical connections. Made from durable carbon steel, the Series 1601 adapters offer excellent strength, corrosion resistance, and long-lasting performance, making them ideal for high-pressure systems and industrial applications. These adapters are perfect for systems that require flexible, efficient, and dependable fluid routing in demanding environments.