The Falcon Pipe stem does not have a filter however, a central plug allows the right amount of smoke (but no tobacco) to pass through. A special aluminum humidome cools the smoke by condensation. Any 'Goo' is trapped below the stem line to give a smooth smoke. The central cooling tube is made from aluminum only .008" thick, yet incredibly strong. This allows the smoke to be cooled even further before reaching the sealed mouthpiece. The Falcon Pipe is lightweight, due to the aluminum stem and a real pleasure to look at. You can fit any of the Falcon range of bowls to this pipe stem, except for the Alco bowls, which are a slightly different size. If you're looking to build a pipe just for you, then choose this stem and then choose your favorite bowl from our Falcon Pipe Bowls Section.