UltraStream Undersink
UltraStream Undersink
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UltraStream Undersink



or 4 installments of $150 by Afterpay More info

2020 model clearance – extra special price.

Take advantage of this rare opportunity to buy an UltraStream at the very special price below. We never normally discount but are making way for a new model. You will still get all the benefits of the amazing UltraStream listed below. The new model technology will be included in your next filter purchase.

UltraStream Undersink water filter is tested to remove a HUGE range of modern contaminants in your water. Incorporating the latest advances in water filter technology, UltraStream gives you great-tasting, safe, alkaline, ionized, hydrogen-rich water on tap in your home.

UltraStream Undersink Water Filter Benefits:

  • Advanced natural, non-electric water filter;
  • Removes chlorine, VOCs, fluoride, lead, heavy metals and hundreds more contaminants;
  • Turns tap water to great tasting, alkaline, hydrogen-rich drinking water;
  • Install undersink with stylish brushed nickel vented faucet;
  • Filter capacity is up to 800 Gallons or 12 months;
  • Easy to install Replacement Filter.
  • 3 Year Warranty conditions apply. View Warranty page…
  • Manufactured in California, USA.

UltraStream Benchtop version is also available. View UltraStream Benchtop page

If you use bore or river water (well water) please email us before purchasing.

Get in quick to get this stock clearance price. Very limited stock. 

(20 customer reviews)

UltraStream Undersink – Advanced Water Filter

UltraStream, unlike most other water filters, is tested for the filter life to remove a HUGE range of modern contaminants in your water. Incorporating the latest advances in water filter technology, UltraStream gives you great-tasting, safe, alkaline, ionized, hydrogen-rich water on tap in your home.

Superior Water Filtration

  • Removes:
    • Chlorine and chloramines (ammonia is added to chlorine, to stay in the water longer).
    • Volatile Organic Compounds (VOCs).
  • Reduces Heavy Metals:
    • Lead,
    • Aluminum,
    • Iron,
    • Zinc,
    • Copper,
    • and more.
  • Reduces arsenic, phosphorous, and halides, etc.
  • Reduces fluoride and,
  • Softens the water.

Filter tested for the life of the filter (12 months or 800 Gallons).

Healthier, Alkaline Water

  • Adds beneficial alkaline minerals to produce Alkaline Water
  • Adds calcium and magnesium and trace minerals
  • Maintains potassium and sodium levels in water
  • pH up to 9 over 800 gallons (depends on the pH of the input water).

Water Ionizer and Antioxidant Producer

  • UltraStream produces better alkaline, ionized, antioxidant, filtered water than electric water ionizers 4x times the price.
  • It is a far simpler and more affordable way to alkalize, ionize and purify drinking water.
  • Gives consistent negative ORP over the life of the filter down to -500mV.
  • Supplies ‘on tap’ antioxidant negative ions in every glass.

Hydrogen-infused filtered water

Save money, help the environment

  • Saves you big money – cost is 87c/gallon in the first year, 31c/gallon after that;
  • Save thousands of single-use bottles from going into the environment.
  • Flush UltraStream water filter for 20 minutes before use.

Additional Information

The UltraStream Undersink

1 x UltraStream
1 x Spout
1 x Nickel Plated Vented Faucet with a hole drilling template
1 x Pressure Limiting Valve (PLV)
1 x Water pH Test Kit (Reagent)
1 x Installation and User Manual – Benchtop and Undersink versions

The UltraStream Undersink must be installed with a vented faucet, otherwise, any and all warranty or warranty claims are void.

What you will need;
Apply masking tape over the area to put the hole. Use an electric drill with a metal hole saw bit to drill a 1′ or 1 ¼” hole. Remove all sharp edges before assembling the Faucet. We recommend contacting a stone bench expert for drilling a hole in stone benches. See separate full instructions.

Tech Specification

Installation and Operation Manual

  • Preview or download the UltraStream Manual (PDF).
  • The UltraStream under sink must be installed with a vented faucet, otherwise, any and all warranty or warranty claims are void.
  • Flush filter for 20 minutes before use.

Minimum pressure and optimal water input Temperature:

  • 5 psi (35 kPa).
  • 35-104°F (2-40°C).

Dimensions and Weight:

  • Diameter 5” (130mm), Height 12.8″ (325mm).
  • 8.93 lbs (4.05 kg).

Water input and output pH:

  • Input pH between 6.8 – 7.2.
  • Output up to pH 9. Varies with water input pH.

Water output ORP and Hydrogen infusion:

  • Down to -500mV. Varies with water types.
  • Up to 1.1ppm. Varies with water types, water contact time and flow rate.

Filter life:

  • Flushed filter for 20 minutes before use.
  • 800 Gallons litres or 12 months (can vary depending on water quality).


  • Body and base: ABS FDA Approved and BPA Free plastic.
  • All other plastic parts are BPA Free.
  • Tubing, Linear Low-Density Polyethylene Tubing (LLDPE)


Under-sink Installation

Filter Replacement

Test Reports

View Water Filter Life Test Report

View Hydrogen Infusion Test Results

View European Safety Certification

20 reviews for UltraStream Undersink

  1. Bruce C.

    We are more than happy with the UltraStream, very easy to fit, beautiful soft water, and with little Fluroride. The small tap and spout looks great and the main body in the cupboard under the sink. Five Stars

  2. Wayne Ford

  3. John McLean-Hodgson

    Very nice water

  4. John Blanken


  6. Paul

  7. Simone C.

  8. Anne H.

    Thanks for your help and answering my many questions. You guys are ace! I can’t wait for my undersink unit to be installed!!

  9. Lisa D.

  10. Michelle Wight

    We have found the filter fabulous, nice to know we are drinking something a lot safer, no bird poo or frog pee 🙂

  11. Jasmine Potts

  12. Neville

    Seemed daunting upfront, but overall simple

  13. Sok Teo

    Recommendation manufacturer to reduce the alkaline PH between 8 to 9 so majority of family member can drink including children and also to ensure that mild PH is obtained to ensure the stomach produce balance acid for digestion. PH tested were 10.

  14. David Larsen

    So far is performing as we had expected/hoped. Easy to set up as well. My only complaint is that the bottle of pH tester leaked (was not properly sealed) and mostly all gone.

  15. Susan

    We moved from a house supplied with filtered rainwater to drink to one which uses the town supply. Our filter needs changed so I spent a long time researching how to get the best out of the town water we would be using. The Ultrastream came up on top of the list and after some emails with the supportive folks at Alkaway, we took the plunge, spent the money and bought both the Ultrastream and the HomeEdge. We installed them when we moved in and did a blind tasting with the water – before and after the filters were installed. The difference was amazing. The kids said that the new water tasted just like rainwater. We quickly discovered that there is no water quite like that we can get at home and we now take it everywhere we can. I cannot point to a particular symptom or change but there is a difference, an improvement in our overall well-being from drinking this water. Thank you Ian and the team for such a fantastic product. It has certainly exceeded all our expectations.

  16. Desiree

    love the taste of the water.

  17. Anonymous

  18. Shelley H.

    Easy to install. It’s great to know I’m putting healthy, alkaline, hydrogen rich water into my body!

  19. Kal Jade

    Great quality product, really easy to install, fast shipping and good communication. A completely hassle free experience, and the water tastes great! I’d highly recommend this product and this seller.

  20. David Francis

    Ordering process was smooth and the item delivered after a hiccup due to wrong delivering address.

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