About: http://webisa.webdatacommons.org/50831937

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	They also remove harmful chemicals (i.e. Chlorine, Fluoride & Insecticides and other Impurities) and reduce heavy metals such as copper and lead.
http://www.w3.org/ns/prov#wasQuotedFrom	smarthome.com