2-1/2 Female National Standard Thread x 2-1/2 National Pipe ThreadThe 2 1 2 Female National Standard Thread x 2 1 2 National Pipe Thread Hex Adapter is a thread adapter designed to connect hoses or fittings with different thread types. It allows for the transition between NPSH (National Pipe Straight Hose) threads and NST (National Standard Thread), commonly used in firefighting, industrial water systems, and municipal applications. Specifications Details TYPE Adapter DESIGN Thread conversion adapter enables