2-1/2 Female National Standard Thread x 2-1/2 National Pipe Straight HoseThe 2 1 2 Female National Standard Thread x 2 1 2 National Pipe Straight Hose Hex Adapter is a threaded coupling designed to connect an NST (National Standard Thread) female hose fitting to an NPSH (National Pipe Straight Hose) male fitting. It ensures compatibility between different threading standards, making it ideal for firefighting, municipal water systems, industrial water supply, and irrigation applications. Specifications Details TYPE Adapter