the 410 series is a standard coupling that complies with the CEJN original standard and the European standard, the series is characterized by one-hand operation and long service life, it is a coupling that can be operated with one hand, it releases the pressure before disconnecting so that the risk of hose kickback is eliminated, the eSafe coupling complies with the ISO standard 4414 as well as EN 983 and has a steel front in the standard version