These are really underrated pieces. Most will go for an ash catcher or some sort of other water based filtering accessory to keep their glass clean. I, however, prefer to use carbon filters Like this one ant this is by far my best one! I especially like the fact that it fits my new 14mm waterpipe with my old 18mm bowls.
These are a must. I am a real person. I have been buying this product every time I break it or get a new peice. Save your lungs! It's worth the $40. My pipe water is completely clean for weeks too!
most underrated product keeps my lungs clean