Chacom 9mm Tobacco Pipe Filters are activated charcoal filters that fit in the stem of any tobacco smoking pipe or cigarette holder with a 9mm bore. These activated charcoal filters absorb the tar as the smoke passes through without affecting draw or flavour. Chacom tobacco pipe filters are highly absorbent to keep excess moisture and smoke impurities out of your 9mm tobacco pipe. German-made since 1984, these are the most trusted 9mm tobacco pipe filters in France. Fits any 9mm tobacco pipe. 40 pipe filters per package.