<p>The mixing set has a housing contg. at least one connecting opening for water inflow and a water outlet opening. There is a mounting chamber for a valve cartridge insert in the housing. Each inflow conduit for water in a connecting opening and in the insert position on the inside of a housing floor is arranged axially supported with a ring union being sealed by at least one sealing ring in the valve cartridge insert. The ring union is formed as a separate spring ring (3), which in the insert position is located in a ring groove of an insert part (21) of the inflow conduit. The spring ring in its secured position in the ring groove with the valve cartridge insert incorporated is locked in the housing (1). <IMAGE></p>
