Vauen pipe filters are 9mm in diameter. Inside this paper filter there is a carbon filtration system. According to many this is the best form of filter. The carbon takes away an emphatic amount of moisture away from the smoke and it removes much more tar than other filters.
Model: Dr Perl Junior Filters
Number of Packs: 1
Filters in a Pack: 170
Enjoy dealing with you guys.
Authentic European and not Hong Kong made junk.