A faucet end piece connectable to a faucet nozzle is provided including a cylindrical body defining a cavity, a vertical pipe extending within the cavity, and an internal partition with water passages therethrough, extending across the cavity and connecting the vertical pipe to the body; a valve insertable in the cavity including a cap portion fitting over the vertical pipe and having at least one side orifice, a bore and a flange portion projecting transversally from the cap portion; a resilient element insertable inside the cavity between the body's internal partition and the valve flange portion. The valve is movable vertically under water pressure between an upper position wherein water flows through the cap portion side orifice, the bore and through the body vertical pipe, and a lower position where water flows around the cap portion through the internal partition water passages.