About: http://webisa.webdatacommons.org/70885692

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	10 pre-filter 137 can also have a very small pore size such as five to ten microns or smaller and still allow water to be easily drawn through such pre-filter into outer chamber 12.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com