Pilsner Urquell Nefiltrovaný (unfiltered) is available on the Plzensky Prazdroj tour and at Na Parkanu in Plzen. A limited number of kegs were exported to Sweden and Finland for special events. Though the beer is not kvasnicovy (yeast beer), as there is no wort or young yeast added, it is unpasteurized and unfiltered.
Unfiltered Pilsner is available in selected pubs every october.
Note that this is not the same as the more widespread tankovná (tank beer) or the unpasteurized (filtered) version, both of which are found throughout Prague and Czech Republic. all of these other versions should be reviewed under the regular Pilsner Urquell entry. Additionally, the 170 year Anniversary flip-top bottles should be reviewed under the regular Pilsner Urquell entry.