Push and press joint made of a brass solder conversion nipple, corresponding to the DVGW and German Environment Agency requirements, which is soldered with a copper pipe according to DIN 1786, with the RAL and DVGW test labels, seamlessly drawn. Surface coated with tin according to DVGW worksheet W 534. Suitable for use in heating and sanitary areas. Used as a conversion nipple made from copper, C and stainless-steel pipe.