A water supplying extension arm for supplying water from a water source to a showerhead has an elongated hollow extension arm element extending along its axis and having a first end connectable to the water source and a second end spaced in a direction of its axis and connectable to the showerhead, and a water regulating element operatively connected with the second end of the elongated hollow extension arm element and adjusting an amount of water issuing from the second end of the elongated hollow extension arm element to the showerhead.