A shut-off valve housing (1) for installing in a sanitary device, such as in a cistern (2), comprises a water-guiding channel (3) which is arranged in the shut-off valve housing (1) and has an inlet (4) and an outlet (5). The shut-off valve housing (1) comprises a housing element (8) made of plastic and at least one connector element (9) made of metal which is connected to the housing element (8), wherein the water-guiding channel (3) extends through the housing element (8) and through the connector element (9).