brand new in box - never used! If you want to enjoy filtered water on the go, then the Sport Berkey water bottle best suits you! This is ideal for personal protection traveling companion - featuring the IONIC ADSORPTION MICRO FILTRATION SYSTEM. The 22 Oz Sport Berkey Portable Water Purifier is durable, made from safe, non-leaching LDPE #4 BPA-Free, and offers a convenient and portable filtration system using medical-grade technology. Removes or drastically reduces chlorine, chloramines, toxic chemicals, chlorides, petroleum-based products, heavy metals, pharmaceuticals, VOCs, pesticides, herbicides, radiological, unpleasant tastes and odors, silt, and sediment. The Sport Berkey Portable Water Filter has a storage shelf life of 50 years. It uses the same filtration medium as the larger Black Berkey Purification Element.