The Back To The Tap water purification system combines either a sports-style or stainless steel bottle with an individual filtration device which allows the user to filter water on the go. The system was designed as an alternative to purchasing bottled water, which can have a significant environmental and financial impact. The Back To The Tap filter removes most heavy metals, chlorine and other impurities from standard tap water, making fresh tasting, healthier hydration readily available anywhere. Drink up!