Savinelli 9mm Filter Adapter Insert
This hard plastic tube is meant to reside in the place of a balsa filter, for those who smoke 9mm Filtered pipes but don't use filters. It lessens the size of the draft hole from 9mm to about 4-6mm, as the tube is tapered. Because of the taper, one side is able to fit 6mm balsa filters if that size of filter is your preference! These are not needed in order to smoke Savinelli filtered pipes without a filter; however, they are an option for those smokers who prefer the draft hole to be a smaller size.