(1)Adopting volumetric rotary piston principle of measurement. (2) Accurate measurement register separated from water to ensure a clear reading in long-term service. (3) Selected high quality materials for steady &reliable charateristic and good looking . (4) especially suit to the area of bad water quality . Note : Technial data confrom to ISO4064 Price Condition FOB ningbo Origin China Material brass Delivery lead time 1