The name Gore-Tex is best known for its use in clothing, but there are many technical and medical applications for this Teflon-based fabric as well. This rather large filter bag is one, though I have no idea what it is meant to filter.
(The purity figure refers to the percentage of fluorine in pure Teflon.)
Source: eBay seller fabriclauncher
Contributor: Theodore Gray
Acquired: 8 February, 2009
Text Updated: 8 February, 2009