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Discontinued: 321 Filter Water Bottle Blue (500ml)

  • BPA Free Reusable, Stylish, Bottle 500ml
  • Comes with 1 Activated Carbon Filter, Lasting 125 Refills
  • Unique, Easy to Use, Plunging Filtration System
  • Earn 32 Points
50 % of 100
2.5 (2)
Sold Out
4 x Payments of $8.00 with or with
Aus Made

321 Water 500ml Drink Bottle with a Plunge Filter in Translucent Blue is available online at Flora & Fauna.

As soon as we got our hands on this bottle we loved it. It's a great size for on the go, light, easy to carry and the filter significantly reduces chlorine and any unpleasant taste and odour. Note it doesn't remove fluoride or treat water that is not safe to drink. 

Designed and made in Australia this unique patented filter tree plunger mechanism containing a carbon block filter to give you clean water whenever you need it.

Strong and sturdy and in a variety of colours. The filter lasts for around 125 refills. Once you have finished with the filter you can put it in the compost as it's made of activated carbon which is organic material. 

  1. 500ml BPA Free Recyclable Bottle
  2. Comes with 1 Activated Carbon Filter
  3. Absolutely BPA and BPS Free and made of Recyclable Plastic
  4. Easy to Clean. Dishwasher safe (please remove the filter)
  5. The filter lasts for around 125 refills
  6. Glass Like Appeal
  7. Wide Mouth
  8. Cup Holder Friendly
  9. Odour and Stain Resistant
  10. Helps Eliminate the use of Single Use Plastic
  11. Height 22.5cm, Diameter: 7.2cm, Weight 150g (empty)  

For more info read our Guide to 321 Water

Taking Care of your bottle:

  1. Dishwasher safe.
  2. Clean with warm, soapy water.
  3. Do not put the bottle in the microwave or freezer. Be careful with hot liquid not to overfill in case of burns. 

Unpacking Your Filter

  • Remove the protective plastic from the Filter System
  • Briefly rinse the Filter under the tap then insert into base of the Filter Tree

Clearing the Dust from the 321 Filter

  • Before use you need to clear dust from your Filter.
  • Fill the Container about 4cm or 2 fingers from edge.
  • Insert the Filter Tree.
  • Slowly plunge to the bottom with even pressure making sure the Filter Tree stays centred. 
  • You may see the water change colour; don’t be alarmed you’re merely cleansing dust from the Filter.
  • Empty the water onto your favourite plant.
  • Pull the Filter Tree out in a straight line.
  • Congratulations, your 321 Water is ready for use.

Refilling your 321 Water Bottle

  • Fill the Container about 3cm or about 2 fingers from edge.
  • Place the Container on a hard surface and slowly plunge all the way down with even pressure making sure the Filter Tree stays centred.
  • Hold the top in place and screw the container on tightly.
  • Open the Cap and enjoy fresh, filtered water.
  • To Refill: Hold the Top in place and unscrew the Container.

Disassembling and Changing your 321 Water Bottle

  • When disassembling your bottle make sure to hold the stem from the top not the middle to avoid snapping.
  • Every 125 refills you will need to replace the Filter Disc in your Filter System.
  • To do this, place your hand around the base of the Filter Tree and carefully remove the Filter System.
  • The Filter System is made up of 4 parts. Keep the Mesh and Silicon Base.
  • Remove the Filter Disc and Pre-Filter and dispose of.
  • Put the Filter System back together in the correct order with a new Pre-Filter and Disc.
  • Briefly rinse the Filter System under the tap and insert into base of the Filter Tree.
  • Please note: The Filter Disc has a rough and smooth side. The rough side sits on top of Pre-Filter

Taking Care of your bottle

  1. Dishwasher safe. Please place on top shelf. 
  2. Clean with warm, soapy water.
  3. Do not put the bottle in the microwave or freezer. Be careful with hot liquid not to overfill in case of burns. 


Bottle is made of BPA Free and BPS Free Recyclable Plastic. The plastic is called Eastman Triton Co-polyester. Eastman Tritan is a new and recyclable plastic especially developed for the food and drink industry because it contains no BPA.

Comes with an Activated Carbon Filter.



Rating snapshot

Average community rating

50 % of 100
2.5 Based on 2 reviews

Write Your Own Review

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  1. Rating

    Posted on

    Not great

    I bought this water bottle, and was not impressed. After my third or fourth use, the filter insert actually snapped. It was then just a plain water bottle. The design was great in theory, but just not in practice.

    Review by


  2. Rating

    Posted on

    Good but bad

    I like the look of this bottle and the idea of it but it leaks so much. Not even just from laying it on its side but also just from drinking from it. I still use it but it's a bit annoying.

    Review by


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