External Thread Adapter DN 40 1-1/4

A coupling with external threading — this is a fitting used to connect pipeline systems using external threading. It is typically used in water supply, heating, and gas systems, as well as various industrial installations. A coupling with external threading can be used to connect to a union or other parts that have internal threading.  — this is a fitting used to connect pipeline systems using external threading. It is typically used in water supply, heating, and gas systems, as well as various industrial installations. A coupling with external threading can be used to connect to a union or other parts that have internal threading.