Inlets are equipped with a locking device which secures a strong connection to both rigid and flexible conduits. The conduit can be unfastened by twisting and pulling out at the same time. The inlets can be used both in mounting boxes and junction boxes. The inlets are color coded; Ø16 mm is blue, Ø20 mm is white and Ø25 mm is green. Made of halogen free material (IEC/61249-2-21).