Armitage Shanks Avon 21 Self Closing One Taphole Basin Mixer With Copper Tails No Waste B8861AA 

Self closing pillar taps avoids wasting water and energy.  Includes additional water saving anti-vandal outlet spout.  Laminar flow pressure, compensation regulator with maximum 3.7 litre per minute flow rate.  These products are designed for handwashing applications in washroom envirnments.