If you like to swap out your favorite briar's 9mm filters particularly often, to keep the cleanest, smoothest smoke, you may want to get your Dr. Perl Junior filters in numbers a bit more substantial than the standard 10 pack. That being the case, you'll love this item: The genuine Dr Perl charcoal filter, in a 40-count box.
A great filter for removing moisture but allowing the tobacco flavor to pour through. Make sure you face the blue end of the filter towards the stem. If you don't read the very small print on the box you would never know to do this and it makes all t... Read Morehe difference in the world. Read Less
I don't always smoke filter pipes, but when I do I prefer this filter (read it with an aristocratic Spanish Accent :). Good value, large volume and effective in all the 9mm filter pipes I own. -Best Regards, Dave Ray