The SEALFAST 2 1/2" M-ORB X 2" F-NPSM Swivel is a high-quality fitting designed for secure connections in fluid transfer applications. This swivel features a male O-ring boss (M-ORB) on one end and a female National Pipe Straight Mechanical (F-NPSM) connection on the other, ensuring a leak-proof seal. Constructed from durable materials, it is suitable for various industrial and commercial uses. The 2 1/2" size allows for efficient flow rates, making it ideal for hydraulic systems and other applications requiring reliable performance.