Water-to-Go is the must have bottle for any situation.  Not only is it a lightweight, reusable filtered water bottle, but its 3 in 1 filter technology means that you can drink safe from any non-salt water source. Created based on technology originally developed for NASAour 3 in 1 filter eliminates over 99.9% of all Bacteria, Viruses, Chlorine, Fluoride and Heavy Metals such as Lead, from your water leaving you with safe, healthy water for you. With the increased concerns about the quality of tap water and the expense of bottled water, our BPA free filtered bottle ensures that you have access to safe water wherever you are. Eliminate single use plastic water bottles by using a the Water-to-Go bottle. Reduce your plastic consumption, adding less plastic to the environment! 500ml Bottle: Each bottle comes with a filter that lasts approximately 2 months (it filters 130 Litres) and includes a unique timer to track the filter life. 750ml Bottle: Each bottle comes with a filter that lasts approximately 3 months (it filters 200 Litres).