(215 customer reviews)

UltraStream Replacement Cartridge


Revolutionary UltraStream Replacement Cartridge

The UltraStream is the most advanced alkalizing water filter system available today. Tap water passes through the 8 layers of filtration media and alkalizing media. Producing sensational, pure, great-tasting, alkaline drinking water in every glass. Designed by Australians, and manufactured in the USA.

  • Fits Benchtop or Undersink UltraStream Units
  • Replacement Filter UltraStream Water Alkaliser
  • Constructed from EPA approved plastic. BPA Free
  • All filtration media EU approved
  • Made in the USA under AlkaWay’s supervision
  • The patent-pending UltraStream filter uses the highest quality patented filter media plus exclusive O-Dobi alkalizing, ionizing, and hydrogen producing media. It also supplies infused magnesium and calcium through the life of the filter, calculated and tested over 3000 litres.
  • You get a ‘new water ionizer with every filter change’. The complete ionizing system is integrated within each filter
  • Ultrastream replacement cartridges are available in White or Black.

Learn more – Revolutionary UltraStream Alkalizing water filter

To help reduce the environmental load on our landfills, the Silver and Black UltraStream Replacement cartridges will be supplied without the Stainless Steel (SS) sleeve and Plastic caps. This is in response to requests from the majority of our customers. So, when replacing the Cartridge, please keep the black cap and SS sleeve to put onto the new cartridge. Thanks.

Benchtop replacement cartridge instruction video
UnderSink replacement cartridge instruction video

Remember to flush the new UltraStream Replacement Cartridge for 15 minutes before use.


or 4 fortnightly payments of 62.25 with Afterpay More info



More information on the UltraStream Replacement Cartridge

The patent-pending UltraSteam water filter uses the highest quality patented filter media plus exclusive O-Dobi alkalizing, ionizing, and hydrogen producing media. It also supplies infused magnesium and calcium through the life of the filter, calculated and tested for over 3600 litres.

Important note for all water filter customers. No filter lasts forever. 3 factors affect the lifespan of the filter.

  1. The quality of the filtration media.
  2. The amount of filtration media.
  3. The amount of ‘gunk’ in your water.

For this reason, we recommend replacing the UltraStream Replacement Cartridge every 12 to 14-month. Although we have the world’s best filtration media in generous amounts, any filter, no matter how good it is, is a ‘toxic waste dump’ collecting the toxic chemicals and debris in your water and preventing its passage into your body.

Additional information

Weight 2.6 kg
Dimensions 19.5 × 19.5 × 32.5 cm

215 reviews for UltraStream Replacement Cartridge

  1. Russell Workman (verified owner)

  2. Lisa Mollison (verified owner)

    great !

  3. Phillip Herbert (verified owner)

  4. Anthony Wilson (verified owner)

    Does a great filtering job for such a compact unit.

  5. tim morris (verified owner)

  6. Robert Bacon (verified owner)

  7. ChristineChristine Hollow (verified owner)

  8. Graeme Gingell (verified owner)

    Been using for 5 years…all good

  9. Anonymous (verified owner)

  10. Helen R. (verified owner)

    Really happy with this product. I have been using it for many years

  11. Les Lavis (verified owner)

  12. Merlin Baker (verified owner)

  13. Anonymous (verified owner)

  14. Tracy C. (verified owner)

    Seriously Easy to Replace

  15. Lyndsay Fenwick (verified owner)

    Great makes drinking water so easy

  16. Brigitte (verified owner)

  17. alan harrison (verified owner)

    All good but the cost is making it difficult to justify the outlay each year

  18. Diane Bourke (verified owner)

  19. Roslyn (verified owner)

  20. dean s. (verified owner)

    I have been using the ultrastream for about 5 years and love the quality of water I consume.

  21. Edward Enoka (verified owner)


  22. Josef Wild (verified owner)

    as above.

  23. Bob L. (verified owner)

    Whats to say, I got exactly what I asked for

  24. Karen McPaul (verified owner)

  25. Jodie (verified owner)

    Always can tell the difference when we put a new cartridge in 🙂

  26. Melissa (verified owner)

  27. Joy Watson (verified owner)

    Pleased to see less waste

  28. Dereck (verified owner)

  29. Shane D. (verified owner)

  30. Jason Garde (verified owner)

  31. Gail Dillon (verified owner)

  32. Anonymous (verified owner)

  33. Walter H. (verified owner)

    It fittet.

  34. Jeannine Andrews (verified owner)

    You got the colour wrong but notified us. All good

  35. Andy F. (verified owner)

  36. Brendan Wilkie (verified owner)

  37. Neil (verified owner)

  38. Nanditā Jackson (verified owner)

    This is a truly excellent product!
    We are very pleased to have the Ultrastream in our house. The water quality is amazing – our bodies feel well hydrated, healthy and happy! Thank you Ian and team at Alkaway for your research and development of the Ultrastream.
    We can highly recommend this product – you will be as pleased as we are with it!

  39. Elizabeth (verified owner)

    Great product, swift service

  40. Carol O’Connell (verified owner)

  41. Anonymous (verified owner)

  42. Anne-Marie (verified owner)

    Great products easy straightforward ordering and delivery. Never had a problem with the company. I’m a return purchaser

  43. Julia H. (verified owner)

    Great water! Fast service!

  44. Nick Matthews (verified owner)

    Speed of delivery great. Could you provide a water pH tester as well please?

  45. Christine S. (verified owner)

    We love our filter, we have been happily supplied for over 4 years now. Even in these uncertain times the warmth and service remains. I definitely will continue to support this wonderful Australian business!

  46. Lana (verified owner)

    Always a fabulous product, used them for years.

  47. Roger Griffiths (verified owner)

  48. Russell T. (verified owner)

    Arrived very quickly, easy to install. I didn’t realise how dirty the old filter was. Would be really good if I could recycle the old filter somehow – hate sending it to landfill 🙁

  49. Tom Bunko (verified owner)

  50. Kim B. (verified owner)

    Very happy!

  51. barbel vogeley (verified owner)

    very good

  52. Mark W. (verified owner)

  53. Stefan Atanassoff (verified owner)

    all in good order

  54. Susan (verified owner)

    Love the ease and longevity of this amazing filter for Sydney water! Definitely worth $250 per year!

  55. Garry Harrison (verified owner)

    Pleasure to do business with you. Will be in touch when a replacement filter is required.

  56. Matthew Tulk (verified owner)

    excellent turn around

  57. Peta T. (verified owner)

  58. Henriette Muys (verified owner)

    Great product, great service

  59. Irene Veltman (verified owner)

    Love the taste

  60. Sharree C. (verified owner)

    Fantastic water filter system and so easy to replace yr filter each year.

  61. Brian (verified owner)

    Easy to install replacement cartridge (anyone could do it), up and running with great water within the hour. Would of course recommend to others.

  62. John McKay (verified owner)

    Great product, great service

  63. Angie McKenzie (verified owner)

    Very quick to send and good communication as well as good product

  64. Mike H. (verified owner)

    Excellent water filter. We would love to have the under sink model, but that will have to come later!

  65. Simona Milea (verified owner)

  66. Barry Jackson (verified owner)

    A great water filter& great service.
    Thank you

  67. Anonymous (verified owner)

  68. Alan Everett (verified owner)

  69. Anonymous (verified owner)

    Best filter we ever used!

  70. Gary Macri (verified owner)

  71. Jenie Simpson (verified owner)

    Quick service 👍

  72. Shiralee W. (verified owner)

  73. Anonymous (verified owner)

  74. Edward Burk (verified owner)

  75. Almeda Peer (verified owner)

  76. Harriet Clutterbuck (verified owner)

    It’s good that you send reminders when it’s time to change the filter otherwise I might not get around to it. And as always the staff are friendly and helpful

  77. Jacqueline Szemes (verified owner)

    Speedy service, very happy

  78. Joy (verified owner)

    The water quality is absolutely pristine, truly luscious to drink, and when used to make my tea, its simply delicious, it really makes the pure flavour of the tea shine through as its supposed to! I am completely satisfied with this product.

  79. Ian (verified owner)

    Yes happy with the delivery of replacement filter

  80. LARRY ADAMS (verified owner)

    Excellent , very happy with Alkaway , as allways :o)

  81. Samantha (verified owner)

    Very happy with the quick delivery of my replacement cartridge and the UltraStream unit is a must for every household!

  82. Rochelle Doukas (verified owner)

    Great service and the best water to drink.

  83. andrew (verified owner)

  84. Mark Kruse (verified owner)

    We love the water from this filter, makes it extremely hard to drink normal tap water

  85. LACH MCPHIE (verified owner)

    Love this water

  86. Jamie (verified owner)

  87. Christine S. (verified owner)

    Service is always prompt

  88. Annette (verified owner)

  89. David Graham (verified owner)

    Ian, team – love your work – cheers – David Graham

  90. Ian G. (verified owner)

  91. Norman (verified owner)

  92. Megan Pang (verified owner)

    Happy with the products and services

  93. Howe Hee (verified owner)

    Great product services and shipping arrangement from understanding customer service team, thanks.

  94. Tony Duguid (verified owner)

  95. Libby Dodd (verified owner)

    Wonderful reminder from Alkaway and quick service and delivery

  96. Kristy Porter (verified owner)

  97. Anonymous (verified owner)

  98. Anonymous (verified owner)

    We love this pure, soft water! It helps us to be motivated to DRINK OFTEN! So worth it! Thanks Alkaway.

  99. cathie (verified owner)

    fast reliable replacement filter . would recommend

  100. Ruth Wallis (verified owner)

    The service was fantastic, have ordered before, and the product is everything we need. Couldn’t be happier with Alkaway and their service and product.

  101. Anonymous (verified owner)

  102. Diana Killen (verified owner)

    I recommend the Ultrastream to all my nutritional clients. I’m very happy with it.

  103. Martin Harris (verified owner)

    No problem all delivered and fitted well thank you,

  104. Anonymous (verified owner)

    have been using for 4 years and are totally satisfied

  105. Andrina (verified owner)

    Great filtration system and very good customer service.

  106. Ian Johnstone (verified owner)

    Have bee using for a number of years. I can’t drink tap water now!

  107. Russell Z. (verified owner)

    excellent product and service. Thanks

  108. Grazyna Durak (verified owner)

  109. david parkinson (verified owner)

  110. roland short (verified owner)

    Great product ,have been using it for many years now , very happy👍

  111. Glenn (verified owner)

    Always excellent service from this company

  112. Tristan (verified owner)

  113. Karen Hayes (verified owner)

    Just wish I could have bought the one without The stainless steel as mine was just fine to reuse. I thought I was buying just a replacement cartridge. Tell me how to do that next time.

  114. Wayne Rigg (verified owner)

  115. Peter Martyn (verified owner)


  116. Anonymous (verified owner)

    Happy with the replacement purchase.

  117. John Maddy (verified owner)

    efficient service with prompt delivery

  118. Jarmila T. (verified owner)

    Great product excellent service. Highly recommended!

  119. Anonymous (verified owner)

  120. Fiona Reynolds (verified owner)

    All good, thank you.

  121. Gary H. (verified owner)

  122. Graham Cotter (verified owner)

  123. Alla Redigolo (verified owner)

  124. Robert L. (verified owner)

    This was a replacement cartridge for our existing excellent and most effective filter. I have had water filters for more than 30 years, this is by far the best ever.

  125. Timothy crowley (verified owner)

  126. Gregory Hicks (verified owner)

    Solid product….delivers ultra clean water.

  127. Leonie (verified owner)

    Fast, efficient delivery. Great product technology.

  128. John Blanken (verified owner)

  129. Anonymous (verified owner)

  130. Ian L. (verified owner)

  131. Greg B. (verified owner)

    Top job

  132. Jennifer Kennedy (verified owner)

    Our replacement cartridge arrived in record time! Thanks Alkaway!

  133. Doug Wakefield (verified owner)

  134. Heta (verified owner)

    I am very happy with my Alkaway filter.

  135. Anonymous (verified owner)

    Being using it for few years and it is great!

  136. Catherine Phillips (verified owner)

    As always – great products and very fast delivery. Thank you.

  137. Anonymous (verified owner)

    Very happy with this product

  138. Marjorie Leggett (verified owner)

    love the filter can taste the difference again with new one.

  139. Neil Cunningham (verified owner)

    Thanks again. Greet service.

  140. Natalie (verified owner)

    Very quick delivery

  141. Janine W. (verified owner)

    Always happy with your efficient and quick delivery of my replacement filter. Been using your filter now for many years, and I don’t like drinking other water, because I can taste the difference, even when I go out I take my own water bottle. Thank you all, may we have many more years together.

  142. Mirko Iovtchev (verified owner)

  143. Lachlan (verified owner)

    Very prompt service , great products, water tastes sweet.

  144. Maisie Bertuccio (verified owner)

  145. Wendy Cole (verified owner)

    Very happy with quick response to my order, and delivery time. Filter excellent. Thank you all at Alkaway.

  146. Mary McCallum (verified owner)

    Products arrived very quickly. Ordering was extremely easy. Excellent service, thank you.

  147. Henriette M. (verified owner)

  148. Robert Carr (verified owner)

    Fast and furious delivery. Thanks.

  149. Marilyn Box (verified owner)

    Very fast delivery

  150. Sarah Chen (verified owner)

    Efficient service! Great product!

  151. Lyn & Rainer Dultz (verified owner)

  152. Toby Coote (verified owner)

  153. Anonymous (verified owner)

  154. William C. (verified owner)

    Great product, delivered on time, no problems.

  155. Anonymous (verified owner)

  156. Kim (verified owner)

    Great efficient service with a great product. Thankyou

  157. Cheryle (verified owner)

    Love this water filter, this is our third year of using it.

  158. Megan P. (verified owner)

    Excellent customer services and product

  159. ANN W. (verified owner)

    The replacement cartridge is easy to replace. I drink a glass of water before other beverages and the water from the UltraStream makes a lovely cup of tea it’s always refreshing YEAH!!

  160. Cheryl (verified owner)

    Love the beautiful taste of clean fresh water. Dad did a taste test with Mum and she picked it straight away. She is 82.

  161. Les lavis (verified owner)

  162. Graeme Gingell (verified owner)

    We reqeived it in good order as expected.

  163. Graeme Whitlock (verified owner)

  164. Ann-Marie von Douglas (verified owner)

    Couldn’t be happier. Such quick service. Easy to order and no dramas. I do credit the Alkaway system with keeping me healthy after my cancer. Love my lovely water!

  165. Benjamin Ridley (verified owner)

  166. Anonymous (verified owner)

  167. Graeme (verified owner)

  168. Egon (verified owner)

  169. Igor Antoniak (verified owner)

  170. Alan Saunders (verified owner)

  171. Mark (verified owner)

    No problems, all good.

  172. Eric Young (verified owner)

    Quick and efficient service, thank you

  173. Deanna Brookhouse (verified owner)

    Easy order, quick delivery

  174. Megan (verified owner)

  175. Graham (verified owner)

    New replacement cartridge was easy to install. After running it in for 20 minutes I had my first drink – and later had to visit Mother Nature. This reassured me that the filter was working to perfection. Now body has readjusted to drinking the purest water money can buy. A great and important product to have and to use daily in one’s home for better health and sense of well-being. No argument need be entered. Graham.

  176. Rajendra Kumar (verified owner)

    I received my replacement Cartridge within three days after ordering and with free delivery.

  177. Eddie (verified owner)

    great service, speedy delivery

  178. Clare (verified owner)


  179. Stephen H. (verified owner)

    I am thankful for the yearly reminder and the prompt delivery of our Ultrastream. This year I asked if there was a little extension pipe and lo and behold it was in the parcel – no problems

  180. Philip C. (verified owner)

    Thank you, appreciated the heads up to replace the cartridge. We love our clean water and get regular compliments from our visitors on the quality of water. We always endeavour to take enough water from home when away.

  181. Steve Schiller (verified owner)

  182. Tristan Moore-Wood (verified owner)

  183. Casey Lau (verified owner)

  184. Greg Tombs (verified owner)

    Even after a few weeks the unit continues to drip after use, then takes time then to get a steady stream each time. I have only changed the filter. Is there anything else I can do to alleviate the issue

    • webmaster (store manager)

      As you probably already know its a side an effect of the Hydrogen production and should slow in a couple of weeks. But it’s defiantly worse on some water supplies, we are working on ways to reduce it. If it’s still a problem call or email us and we should be able to help.

  185. Karl-Heinz Gleich (verified owner)

    I love this Water

  186. Neil Smith (verified owner)

    Love the product and service. Have nothing but a positive experience

  187. Roman B. (verified owner)

    Perfect product

  188. Jo (verified owner)

    Great product,I’ve been using the filter now for along time,and it’s one thing I wouldn’t go without, the delivery time is great,I’m in country Qld and order on a Thursday night late knowing they are closed Friday,my order arrives via courier usually Tuesday morning by 8am

  189. Anonymous (verified owner)

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