Supply Giant half coupling with a female connection. This fittings is characterized by having on one end a threaded coupling, which fits to a threaded pipe, and on the other end a thread less connection, for fitting of a hose or for welding to a thread less pipe. In particular, the thread of this 3 inch coupling is straight tapped. Furthermore, it is made of merchant steel with a black finish, which gives it additional corrosion protection. In addition, this fitting meets or exceeds all applicable ASTM, ANSI and API standards. ⚠ California Proposition 65 Warning: This product is known to the state of California to cause cancer, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.