KURO-Bō Kōins (1)

(7 customer reviews)


  • Provides 3+ months of daily naturally purified water on the go – up to 1L at a time
  • Plastic-free and sustainable
  • Ideally paired with the KURO-Bō Gō-Ecō Glass Bottles
  • Recyclable in many eco-friendly ways


The first of their kind in the world, and scientifically-proven, KURO-Bō Activated Charcoal Kōins are a completely plastic-free, sustainable and recyclable water purification solution.

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.

  • Why not consider also signing up for our bespoke Recurring Order Service? 

Here you can select your tailored choice of KURO-Bō filters and we’ll take all the pressure to remember away – automatically couriering your KURO-Bō Natural Filters to your door every 3 months. Sign up once and the direct debit will automatically come off every 3 months. You can also cancel at any time. How convenient! 

7 reviews for KURO-Bō Kōins (1)

  1. Celina

    Love it and just keep ordering. I have been using for a few months now and just love how clean and tasty my water is – review from Faithful To Nature

  2. Presha

    Revolutionary. I cannot drink tap water directly from the tap anymore. I can instantly taste the difference. Also filters quicker than the sticks so perfect on the go. I use it with the Kuro-Bo 1 litre bottle and it’s ideal for my desk at work – review from Faithful To Nature

  3. Dawn

    Amazing product – Thank you KURO-Bo! So happy with my ‘coins’ . I bought them for our holiday trip……we saved a fortune on bottled water and we’re so happy with the taste of our coin filtered water……needless to say we are now using KURO-BO every day at home. Thank you for the amazing product – review from Faithful To Nature

  4. Bernice

    Nice for travel. So far its been great. We do use a filter for our main drinking water at home, but I use this in our drinking bottles when we travel! Its been great! – review from Faithful To Nature

  5. Kerry Shepherdson

    I have been so absolutely blown away by how effective these little Kuro-bo koins are! I drink 3 litres of water a day and for the first time I’m not wrestling with either bad tasting to water or worse, bottled water. Converted for life! Makes an amazing difference to our environment. (Facebook Review)

  6. Daniela – Faithful To Nature (verified owner)

    Easy and effective
    06/03/2020, By Daniela
    These little guys are super easy to use, you can pop them in a water bottle or a jug, – and they are small enough to fit through the mouth of most bottles! yay : ) They also make the water taste so much better

  7. Vanessa – Faithful To Nature (verified owner)

    Love it
    31/01/2020, By Vanessa
    Bought these the other day. Easy to use and my water tastes great.

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