... advanced RO system ,the output water is pure. 2,this system adopts American Hydec system design basis 1. Raw water quality :(haven ... 1,It adopts current advanced RO system , the output water is pure.2,this system adopts American Hydecame company ESPA- ... chrome ...etc from water source. The quality of treated water is drinkable, clean and pure. system introduction: Raw water→ raw water pump → Quartz ...