About: http://webisa.webdatacommons.org/196479691

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	A number of different types of systems are available from companies which specialize in filtration products, along with replacement membranes and other parts and equipment.
http://www.w3.org/ns/prov#wasQuotedFrom	wisegeek.com