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PureSync – 5 Stage Undersink Structured Water Filter System – BACK IN STOCK W/UPDATED FILTER LINEUP!


(41 customer reviews)


A Note Regarding Our Updated Filter Lineup: At Greenfield Water, take pride in offering cutting-edge solutions for clean, safe, and healthy water. Our filter lineup is continuously updated to incorporate the latest advancements in water filtration technology. 

The Greenfield Water Solution’s Under Sink Structured Water Filter Solution system offers a triple-stage filtration, structuring, and energizing process right at your kitchen sink, harnessing cutting-edge German water filtration technology and housed in Italian-made clear housing. Our included filters comprehensively target a broad spectrum of contaminants, including Fluoride, Arsenic, Pharmaceuticals, and more, to provide you and your family with safe, beneficial water.

Stage 1 – String Wound Sediment Filter: Removes sand, silt, rust, and scale particles, protecting and enhancing the efficacy of subsequent filters.

Stage 2 – pHSync Filter: Adjusts pH levels for optimal filter performance. Utilizes advanced German media, Organasorb, for comprehensive contaminant filtration, including chlorine, chloramine, VOCs, and more.

Stage 3 – ViroGuard Filter: Removes chemicals, chlorine, chloramine, tastes, odors, fluoride, arsenic, and selenium. Features a specialized media for targeting fluoride and arsenic.

Stage 4 – Structuring: Enhances hydration through toroidal vortexing principles, promoting vitality, energy, and improved filtration performance.

Stage 5 – Energization: Utilizes our integrated harmonizer to infuse the water with resonances and valuable information, optimizing its energetics for superior cellular utilization.

Optional Add-On – Mineralization: After filtration, pH enhancement is achieved using 99.99% pure MgO + CaO, provides significant benefits for people, plants, and animals while inhibiting corrosion. (This stage is optional, as our filters never remove any source minerals.)

Benefits of the PureSync:

1.) Comprehensive Contaminant Reduction/Removal – Refer to our brochure for in-depth information on how our system effectively addresses a wide array of contaminants.

2.) Cost-Effective Maintenance – Thanks to advanced German technology and our in-house media mixing, annual filter replacement costs remain low.

3.) Biomimicry-Inspired Technology – Our system is meticulously designed with biomimicry principles, ensuring the absence of common negative side effects associated with ROs and salt-based softeners.

The filter system is shipped with two water dispenser options:

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


For installation guides and videos, please refer to the links provided below.

Please note that the system may come with either blue or gray housing lids.





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



Greenfield Water Solutions Logo

5-Stage Undersink Structured PureSync System

Advanced Contaminant Mitigation and User-Friendly Maintenance

  • Health Protection: The removal of contaminants such as Fluoride, Arsenic, Pharmaceuticals, and thousands of otherand others is vital to safeguarding your health.
  • Enhanced Wellness:

    The elimination of impurities with the addition of structuring and energizing ensures the water you consume supports your overall well-being, vitality, and life-force.

  • Ease of Installation: Our system is designed with simplicity in mind. Installation is straightforward, making it accessible for homeowners of varying technical expertise.
  • Affordable Maintenance: Beyond the initial installation, our system offers cost-effective maintenance. With German-engineered technology and in-house media mixing, annual filter replacements are budget-friendly.

Optional Mineralizer Upgrade

For those seeking to enhance their water quality further, our system offers an optional “Mineralization Upgrade.” After the filtration process, this feature elevates the water’s pH using natural 99.99% pure Magnesium Oxide (MgO) and Calcium Oxide (CaO). These minerals not only balance pH but also provide numerous benefits for humans, plants, and animals. Additionally, this upgrade serves as a corrosion inhibitor, protecting your plumbing system. Importantly, all source minerals present in the water remain unaltered, making this stage entirely optional. This flexibility allows you to customize your water treatment to suit your specific preferences and requirements.

An Essential Step: The Structured Water Vortexer​

The Vortexer by Greenfield Water Solutions harnesses the power of structured water, which represents a dynamic and vital form of H2O. Structured water is not merely a chemical compound; it embodies the essence of life, reflecting its surroundings and retaining a record of the energies it encounters. Through a meticulous process that emulates nature’s principles, the Vortexer restructures water, allowing it to maintain its natural balance and purity, free from excessive contaminants.

By incorporating a harmonizing chamber with proprietary technology for broadband energization, the Vortexer facilitates the formation of a toroidal vortex, which serves to revitalize and restructure the water at a fundamental level. This intricate process closely mimics the natural movements and formations found in pristine water sources, ensuring an enhanced and rejuvenating water experience.

Greenfield Water Solutions has conducted extensive global trials over the course of a decade, consistently showcasing the remarkable benefits of structured water. Whether utilized in residential households, agricultural landscapes, or commercial establishments such as livestock areas, dairies, and laundromats, the Vortexer continues to contribute to the creation of a harmonious and revitalizing ecosystem wherever water flows.



Maintenance Schedule:

Recommended Annually:

Stage 2 -pHA FILTER

Gaskets and Lube renovation at filter change

Stages 4 & 5 require no replacements. 

Replacement packs can be conveniently purchased here. Replacement gaskets and lube are included in replacement pack purchase. 

DP Filter Housing NSF Certification 

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:

41 reviews for PureSync – 5 Stage Undersink Structured Water Filter System – BACK IN STOCK W/UPDATED FILTER LINEUP!

  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)

  29. Arturo S. (verified owner)

    Great tasting water

  30. Jeremy Kinder (verified owner)

    install instructions could be better. the online video was easy to follow however there were parts that were not in the video

  31. Matt Mondorff (verified owner)

    I love the system, and the customer service by Zach is first class. I bought the system for myself and after my mom visited and drank the water she immediately ordered one too.

  32. Jeremiah (verified owner)

    Filter system works fine. Happy with the final water delivered.
    Instructions, online videos, and installation concept were easy to follow.
    Countertop faucet supplied with filter kit is a bit non-standard in the mounting hole suggested (~1/2”). Standard countertop hole is 1-3/8”. Maybe for a more competitive price, kit could be offered without the faucet as many customers likely supply their own custom faucet to match existing sink hardware.
    A cylinder holding bracket (like that which the copper structuring tube snaps into) supplied with the mineralizer would make the final installation crisp and cleaner looking. Having the flow restrictor integral to the filter kit housing would make for less connections and possible leak points.

  33. James Pristov (verified owner)

    Love it! Easy install. Definitely taste a difference in our water. Zero metallic taste. We didn’t even know that our refrigerator filtered water had a metallic taste until we tasted our new filtered water with the Greenfield Water Solition system.

  34. Mike Green (verified owner)

    Set up was easy and everything is working wonderful. I would like to get the water tested and give you more feedback. Thank you guys!! ✌️

  35. Jonathan M. (verified owner)

    Straightforward installation. Water filter unit feels sturdy and the quality is obvious. I opted for the mineralizer add-on. Water tastes fresh and I feel good about the quality of water my family has on tap. Thank you Greenfield

  36. Anonymous (verified owner)

    This water filter is hefty duty. Getting the mineralizer is a great add-on. Make sure the O-rings are checked when installing, I had a small leak due to over-tightening and it was easily solved.

    As far as the water taste. I noticed a complete difference in taste with the 5-stage system. The only setback is the replacement water filters seem a bit expensive.

  37. Ean E. (verified owner)

  38. Roger Bordley (verified owner)

    Very high quality product. I recommend it to my friends.

  39. Mitzi Reece (verified owner)

  40. alfred bellezza (verified owner)

    Can’t say yet. Need to have the water tested for purity level, otherwise how would I know? Will write review for you once I know based upon statistics if this is healthier and purer than R/O filtered water. I couldn’t sent this unless I checked one of the 1-5, so I checked 5.

  41. Bob S. (verified owner)

    Installation was a breeze! Great video. Well designed. One fitting was leaking and I had to reapply plumbers tape, thus the 4 star review for QA.

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