The tap with threaded hose connection is easy to install on a 21 mm (G 1/2″) thread. Thanks to the 26.5 mm (G 3/4″) outlet thread and the 13 mm (1/2″) hose connector, it is suitable for direct connection to a hose or to Original GARDENA or Profi System components with a G 3/4″ internal thread. When connecting to the drinking water supply, please comply with the sanitary regulations applicable in your country to prevent backflow of non-potable water. Please consult a qualified plumber.