for frost-proof outdoor tap Figur 573/575 (manufactured up to 06/2006), 576 02 (manufactured up to 2006), 574 00/574 03/574 05 (manufactured from 07/2006), 577 02 (manufactured from 2007), for securing the tap, for retrofitting to the outlet housing, consisting of: shiny chrome-plated operating handle with lock and 2x bit keys, suitable for all nominal diameters