US Patent 10266431 Water treatment apparatus producing no harmful substances

Disclosed is a water treatment apparatus including a pipe. Elements disposed in the pipe are respectively made of lead-free brass and nontoxic ultra high molecular weight polyethylene instead of brass and plastic polyethylene that are conventionally used materials. Therefore, when the elements come into contact with water, neither heavy metals, such as lead (Pb), nor organic and inorganic substances harmful to the human body are produced.