About: http://webisa.webdatacommons.org/163527002

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	On at least one side of, or within, the substrate is a microporous layer which filters out particulates, such as fly ash and the like, from the liquid stream.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com