Whether paired with our Gō-Ecō Glass Water Bottles (550ml or 1L) or your own reusable bottle, a single box of KURO-Bō Kōins provides 3+ months of daily cartridge-free and naturally purified water on the go. The whole pack (4-5 pieces) will purify up to 1L of water at a time. For our 550ml bottles, simply add all the Kōins for faster purification.
Activated charcoal, or Binchotan attracts and draws out positively-charged toxins (chemicals, heavy metals, E. coli) from your water, while depositing beneficial minerals and balancing an acidic pH.
After 3+ months of daily use, recycle your KURO-Bō Activated Charcoal Kōins in any number of innovative and eco-friendly ways, for example, in your pet’s bowl, as a biochar on your plants, as an organic air purifier or dehumidifier, or in your fridge to prolong the shelf life of your fresh fruit and vegetables.