Scientific Inhalations Filters are made in the U.S.A. by professional glass artisans using high-quality glass and ground joints. Filters can be filled with Organic Cotton or Virgin Coconut Carbon. Help your body experience the benefits of a cooler, cleaner delivery method and still retain the potency and flavor of your medicine. Scientific Inhalations Original Filter Adapter is handmade with high quality (Schott or Simex) glass in California.
If you smoke and care about your body this is the item for you. I change my glass water once a week now and it's still the same color as the first day I put it in! I have bought 3 of these already and constantly annoy my friends to get one.