1-7/8 x 1-1/2 O-Ring x Male Pipe ExtendingThe 1 7 8 x 1 1 2 Female O Ring Boss x Male Pipe Extending Adapter is a hydraulic fitting designed to provide an extended connection between an O Ring male thread and a Male Pipe (MP) thread. This adapter is commonly used in hydraulic, fuel, and fluid transfer systems, allowing for a secure, leak proof extension between different thread types. Specification Details TYPE O Ring x Male Pipe Extending DESIGN Extended design allows for better clearance