The Holy Grayl of Water Filters

The Holy Grayl of Water Filters

An innovative duo showcase their new brand of water filtration system: Grayl. Grayl is a water filter that works much like a French press does for coffee. But can something so compact make even toilet water clean enough to drink? | For more, visit

Catch ALL-AMERICAN MAKERS Wednesdays at 10/9c on Science!

Watch full episodes:

Subscribe to Science Channel:

Check out SCI2 for infinitely awesome science videos. Every day.

Download the TestTube app:

About the Author

You may also like these