ADAPTALL FEM DIN SWIVEL X M DIN REDUCER

The swivel function on this fitting lets the female DIN side rotate during connection, which takes the stress off the hose and keeps it from winding up as you tighten things down. That also helps reduce the chance of a leak point developing at the joint over time. For anybody working in tight quarters where hose routing gets awkward, that feature makes the whole hookup a lot cleaner.