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5 Stage Under Sink Structured pHA Water Filter


(28 customer reviews)

Greenfield Water Solutions is thrilled to offer a filter housing that is entirely crafted in Italy. Combining German-engineered filtration media technology with the exceptional Atlas Filtri housing, this product is a testament to our commitment to providing premium quality solutions.

Greenfield Water Solution’s Under Sink Structured Water Filter Solution system creates triple stage filtration, structuring and energizing right at your kitchen sink using the best of German water filtration technology.  Filters included will all aid in broad spectrum contaminant removal, which also includes Fluoride, Arsenic, Pharma, and thousands more. Third party lab tests available at each link. (NOTE: SYSTEM MAY COME WITH BLUE OR GRAY HOUSING LIDS)

  • Stage 1 – Fluoride and Arsenic specific mitigation stage utilizing powerful adsorbent and highly charged carbon
  • Stage 2 – pHA Technology – Pre carbon-based hydrogen catalyst pH adjustment technology, with additional powerful adsorbent, resulting in enhanced capacity and effectiveness for Carbon-ZVI / Titansorb media in filter #3
  • Stage 3 – Carbon-ZVI / Titansorb broad spectrum contaminant removal, negative ion contaminates are placed into the ideal environment in stage 1 to be removed by this stage. Also addresses broad spectrum contaminants.
  • Stage 4 – Structuring: Enhances hydration utilizing toroidal vortexing principles, for people, plants and animals contributing to vitality and energy as well as improving filtration performance.
  • Stage 5 – Energization of the water utilizing our built in harmonizer, which provides resonances and rich information to the water, enhancing energetics and placing the water into an ideal state to be utilized by our cells.
  • OPTIONAL ADD ON – Mineralization – After water is filtered, pH is enhanced using natural 99.99% pure MgO + CaO, highly beneficial elements for people, plants and animals, also inhibits corrosion. (All source minerals are preserved with this system, so this stage is purely optional)


Discover the benefits of our water filtration system:

1.) Comprehensive Contaminant Reduction/Removal – See our brochure for detailed information on how our system addresses a wide range of contaminants.

2.) Affordable Maintenance – With advanced German technology and our in-house media mixing, annual filter replacements costs are low. 

3.) Biomimicry-Inspired Technology – Our system is carefully built with principles of biomimicry in mind, ensuring no negative side effects commonly associated with ROs and salt-based softeners.

Filter system is shipped with two water dispenser options:

  • Connects to your cold water faucet
  • Connects to a stand alone stainless water dispenser








Dimensions: 17.5″ L x 5.25″W x 14.75″ D




Atlas Filtri (Filter Housings) NSF Certification 

Watch Water (Media for pHA filters)

Disruptor Filter Media

WQA works alongside NSF as an approved certification agency for Watch Water products (our medias) and they are an approved affiliate of this certification. You can also read more at Watch Water’s website here:


One of the chief benefits of the Aquametix filter is its capacity to remove the industrial version of fluoride from water. Fluoride occurs naturally in many water sources and is not harmful but the industrial version of fluoride infused into approximately 73% of American communities is an industrial pollutant which is also used an insecticide and pesticide.  The FDA, CDC and Water Quality Association of America refuse to acknowledge that the industrial version of fluoride is a poison. The majority of mainstream water treatment companies in America abide by the Water Quality Association stand that the industrial version of fluoride is healthy and necessary for children and adults thus few water companies will offer filtration for fluoride.


For well water we recommend this professional water test from Xpress Test.

If you are on a public water system, your water quality report is available online by going to the website of your public water system provider.

Here is an additional site for a limited water review:  EWG’S TAP WATER Database  (They don’t list fluoride).

28 reviews for 5 Stage Under Sink Structured pHA Water Filter

  1. Ed Green

    “I remember reading about the cattle going only to the structured water trough. I have a German ShortHaired Pointer. Gave him two identical bowls of original tap water and the other was structured water. He wouldn’t drink the tap water that he always drank. Pretty wild!!”

  2. Jeff Angel, Mount Vernon, Indiana

    I purchased a structuring unit for my parents who are in their eighties. They reported three notable events:

    Their toilet bowl was easier to clean.
    My father’s asthma attacks were easier to manage.
    My mom’s dementia stabilized.

  3. Jonathan Beaudette

    The Los Angeles water coming out of my faucet now tastes amazing! I don’t have to buy water anymore. I also feel at peace knowing that the water has been thoroughly cleaned, harmonized and structured by a system designed with integrity, genius and love. I’m grateful to have found Greenfield Water Solutions!

  4. Sarah Ricco (store manager)

    We’ve noticed the following since installing a Versatile Vortexer and 4-stage undersink unit with a mineralizing cartridge:
    1. Our chickens consistently drink all of their structured water before resorting to unstructured well water when offered both options, side by side.
    2. We always have enough hot water for showers, running out was an issue in the past due to the small size of our electric water heater.
    3. We really like the taste of the water and therefore find it easier to hydrate sufficiently throughout the day.
    4. After drinking the water for a few days I experienced a bit of a Herxheimer reaction (a good sign, shows the water is actually detoxifying the body), and have definitely noticed increased energy levels ever since.

  5. jonathan glowacki (verified owner)


  6. Christina F. (verified owner)

    This is a great system. (For the team – It arrived without the faucet. Also, the nuts on the top part were loose and started leaking 10 days after I started using it. All set now, but something to look into)

  7. Ryan Hoover (verified owner)

    Love the 5 Stage filter system. Very easy to install and everything needed was included. Water tastes noticeably better and I love to show my guests how an animal will ALWAYS go for the structured water. My plants all get the filtered water and seem to be thriving. Very satisfied.

  8. Glenn G. (verified owner)

    Easy install thanks to the videos and written instructions, did not have to use the written instructions because the under the sink video install was so thorough!! Well worth the $$!!

  9. Samantha S. (verified owner)

  10. Lesley Fisher (verified owner)

    Fantastic filter! Takes out all the bad stuff, and structures the water. Plus, it was so easy to install. I bought one for myself and one for my daughter’s college rental house. She can take it with her when she moves. AND the price is so reasonable. A+++

  11. Brian V. (verified owner)

    Excellent service. Very helpful with explanations in regards to filtration. Customer support was there for me when I needed them. 5 stars!!

  12. Janelle L. (verified owner)

  13. Susan A. (verified owner)

    This is an excellent unit. The water tastes so smooth and clean! Zak was amazing. Every time I called he answered and helped me with my installation questions. Thank you!

  14. DAVID D. (verified owner)

    I am a big fan of Greenfield Water. They’re in it for the right reasons, and provide well conceived, well built and cutting edge equipment.

  15. Lynn (verified owner)

  16. Matthew G. (verified owner)

    I am totally satisfied. Structured water is a game changer!

  17. Frank (verified owner)

    Pretty easy installation for someone who isn’t a plumber.

  18. Steve S. (verified owner)

  19. Karl C. (verified owner)

    Overall very simple to install. It’s nice having great tasting filtered water on tap!

  20. Kelby (verified owner)

  21. Anonymous (verified owner)

  22. David Murray (verified owner)

    The water is wonderful in every way. I concur that the claims made about this system hold up. I’ve had an RO system for years and it’s my opinion that this system is by far superior.

  23. Ann G. (verified owner)

    Thank you Greenfield Water for fresh, delicious and healthy water – it tastes AMAZING!!!

  24. Ashley L. (verified owner)

    Loving our water filter so far. My husband was able to rig it to hook up to our fridge so that’s an easy access for the kids to get water and now I have filtered ice as well.
    The pressure is good and great flavor.

  25. Paul T. (verified owner)

    Love the taste and smoothness of the water and most of all so thankful to have healthy water going into our bodies.

  26. Peter Ivanco (verified owner)

    I just installed that system and I fell in love with it straight away. The taste of water is now milk reminding (color as well). I can’t stop drinking it and it satiates me more than my usual, jug filtered, one. Thank u

  27. Emily G. (verified owner)

    Easy to install into cold water line and makes us feel good to know we’re cooking and drinking clean high quality water.

  28. Ann Sharp (verified owner)

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