9 Plates
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View shipping detailsH2 Series · Premium Performance
9-Plate Under-Sink Water Ionizer — Delphi H29-Plate Under-Sink Water Ionizer — Delphi H2
SKU: 20004101-BLK
Starting at$3,594.99
In Stock - Ready to Ship
Build Your Ionizer.
1Select your Plate Power:
2Select your Finish:
0% Financing
- No Application
- No Credit Check
- Flexible Terms
- 90 day $-Back
- Free shipping
- Limited Lifetime Warranty
- White Glove Service
What’s Included
Your new ionizer comes with everything you need to get started drinking the cleanest healthiest water!
- Undersink Ionizer and Faucet
- UltraWater Dual Filtration Set
- Hard Water Test Kit
- pH Test Kit
- Pre-installed Hoses
- White-Glove Service (live support)
- Inline Pre-Filter
- Installation Adapter Kit
- Manual and Quick Start Guide
- Wall Mounting Hardware
Shipping, Return & Warranty
90-Day Love Your Water Guarantee
The 90-day return period starts when your ionizer arrives. For an ionizer returned in as-new condition, the refund is less a $199.95 flat fee. Eligibility, condition requirements, and other return terms apply.
Review the return policyPlatinum Ultra-Warranty
Lifetime coverage on ionizer parts and five years of service coverage, subject to the warranty terms.
View the full warrantyFinancing
We offer three great options, but our most popular plan offers:
- 0% interest
- No application
- No credit check
- Flexible term: choose the number of months and payment date
Specs
| Electrode Plates | 9 Smart Platinum / Titanium |
|---|---|
| Maximum Power | 150 W |
| Technology | Advanced Gen-II H2 Infusion Technology |
| Electrode / Plating / Membrane | Japanese titanium electrodes, pure platinum plating, and sonically welded membranes (not chemically bonded) |
| Protection Devices | Built-in temperature sensors and RISC circuitry |
| Filtration | Dual UltraWater Filtration |
| One-Touch Selectable pH Levels | Alkaline (5 levels), purified, and acidic (2 levels) |
| Cleaning System | DARC II Cleaning System – Dual Automatic Reverse Cleaning |
| Rated Voltage | 120 V / 60 Hz (also available in 220 V) |
| Base Dimensions | 12.5 × 14.5 × 5.5 in (W × H × D) |
| Diameter of Threaded Shaft | 1⅜ in (1.375 in) |
| Country of Manufacture | South Korea |
| Faucet Dimensions | 9⅜ in tall; long spout 5½ in; short spout 4¼ in |
| Faucet Base Diameter | 2¼ in |
| Faucet Hole Size | 1½ in |
| Installation Method | Under the counter, connected to a cold water line |
| Boxed Weight | 25 lb |
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Smart Payments
that don’t ding your credit or wallet.
Learn more about Financing Options0% Interest
No Application
No Credit Check
No Hassle
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90-Day In-Home Trial
Experience pure wellness risk-free.
Learn more about 90-Day TrialYour 90 day in-home trial starts on the day your ionizer arrives.
If you don’t love the water, your refund is easy!
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Fast, Free Shipping
Your ionizer will be tested and signed off by our technicians, packed and shipped same day*.
Learn more about Our ShippingAlways fast. Always free. Shipping is on us to ensure you get started quickly.
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#1 Rated Warranty and Service
We have the lowest warranty rate in the industry. If anything goes wrong, you get prompt, industry-best service.
Learn more about Our WarrantyAlong with the most durable ionizers you get industry-best service from our support staff.
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White Glove Service since 2003
Founded in 2003, we are the oldest USA importer. We trained many of our competitors including Tyent and Life Ionizers!
Learn more about Our CertificationsTrust our A+ BBB rating, CE, ISO and certified testing.
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Veteran Owned and Operated.
From 1980 through 1986, Jay Hare proudly served in the United States Navy
Learn more about Our StoryWas stationed aboard the USS Ranger.
0% Interest
Real People. Real Results.
Join thousands of families, athletes and health and wellness enthusiasts who made UltraWater part of their daily health routine.
Based on 2,500+ reviews 
Why Choose AlkaViva Water Ionizers Over Other Brands?
You want an alkaline water ionizer to improve your health. Here are six reasons 2,000,000+ homes worldwide choose AlkaViva, the best value in Alkaline Water Ionizers.
Certified Clean
The Cleanest, Healthiest Water Proven, Not Promised.
Premier H2 performance. EPA/NELAP lab tested. Reduces 249 contaminants to 99.9% — PFAS, glyphosate, lead, pharma and more!
See our testing.
See our testing.
Premium Engineering
The Best Value In Water Ionizers
Premier South Korean engineering. Japanese titanium / platinum plates. Honest pricing. No gimmicks, inflated markups or fake sales.
See our ManufacturingSee How We Compare
See our Manufacturing
Efficiency
Do more with Less. Lasting Performance.
Advanced, high-efficiency technology allows us to use less power. Add industry-best cleaning and you get top performance, that lasts.
Why high efficiency matters.
Why high efficiency matters.
Going strong since 2003
An Experience You Can Love & Trust
White glove service. BBB accredited with A+ rating since 2007. Honest Limited Lifetime Warranty. Call us. We answer!
Google Top Quality Store
Google Top Quality Store
0% Financing
No Credit Check. No Application.
Buying over-time makes total sense with 0% interest, no application, no paperwork and no ding on your credit! Interested?
View Financing OptionsCall or Chat Us
View Financing Options
90-day Trial
The Fall-in-Love with UltraWater Guarantee.
Your 90-day home trial starts on the day your ionizer arrives. If you don’t fall in love with UltraWater, let us know and we will refund you!
Easy Returns
Easy ReturnsThe Science Made Simple
The Science Made SimpleHow AlkaViva Water Ionizers Work
Transforming tap water to UltraWater that transforms your health.
Step 01
Clean
Your WaterAdvanced dual filtration reduces up to 99.9% of virtually all tested contaminants.
See our test resultsStep 02
Transform
Your WaterA specialized electrolysis cell makes the water alkaline, ionized and creates molecular hydrogen.
See 3,000 reasons to drink it!Step 03
Drink Your Way To
A Healthier LifeUltraWater is silky smooth and great tasting so you can drink more. Better water. Better life.
Hydration made easy!
See our test results
See 3,000 reasons to drink it!
Hydration made easy!Features
FeaturesDelphi H2 Undersink 9-Plate Water Ionizer, engineered with you in mind
The Delphi H2 Undersink 9-Plate Water Ionizer does not just change your water. It changes the way you experience it every day.
UltraWater
The safety of certified UltraWater filtration
Proven in certified-lab testing against 249 contaminants including PFAS, glyphosate, metals, VOCs and more. Crisp, light, silky-smooth water makes it easier to stay hydrated.
2nd Generation DARC Cleaning
Fully automatic self cleaning
DARC II cleans automatically every time you use the ionizer, helping prevent damaging scale buildup and support consistent performance without routine cleaning.
AutoAdjust Advanced Power
Advanced technology. High efficiency. Maximum performance.
AutoAdjust pulses SMPS power to the electrodes to support efficient operation and lasting performance.
H2 Infusion Technology
The H2Infusion advantage
Ultrasonically bonded membranes work with Smart Electrodes to create a safer, more efficient ionization surface for strong hydrogen performance.
Flexible installation
Designed around your kitchen
The Delphi H2 Undersink 9-Plate Water Ionizer combines straightforward installation with simple one-touch operation and AlkaViva installation support.
BBB Accredited / A+ Rated Since 2007
White Glove Service
We guide owners from post-sale follow-up and live installation support through filter replacement and certified warranty service.
3-step install and one-touch operation
Easy to Use
Intuitive controls put clean, healthy water at your fingertips without complicated programs or meaningless features.
Find your fit
Find your fitThe Best Alkaline Water Ionizers For Every Lifestyle
No two wellness journeys are the same. Discover the water system designed for yours.
Wellness
WellnessBest if You’re Concerned About Tap Water Contaminants
Worried about PFAS, glyphosate, chlorine, lead? The ONLY ionizer filter tested in EPA/NELAP certified labs against 249 contaminants.
Active Life
Active LifeBest if You Want to Improve Your Overall Health
Over 3,000 peer-reviewed studies back up health benefits of H2 in over 200 health conditions. Optimize your health and wellness!
Longevity
LongevityEasiest to Install & Use. Healthy Aging Easy.
One-touch operation. Easy to understand display. Automatic cleaning. No maintenance. All with seven proven healthy-aging benefits.
Digestive Wellness
Digestive WellnessBest if You Want Better Digestive Health
Studies show alkaline water with it’s available carbonate and bicarbonate create a mineral-buffer that eases digestive issues.
Performance
PerformanceAthletes & Recovery
H2 is one of the most studied topics in exercise research, with published studies exploring endurance, performance & recovery.
Joint Pain
Joint PainBest if You Want Relief From Joint Pain
H2 targets and eases the root causes of aches and pains — chronic inflammation, oxidative stress, and lactic acid.
Why it matters
Why it mattersWhat Water Problems Does an AlkaViva Ionizer Solve?
An AlkaViva ionizer is a smart-water processing system.
It transforms water to elevate your lifestyle and everyday home-life!
Filtration
FiltrationA Growing List of Contaminants
Tap water will never get better in our lifetime. We are constantly up our game on our filter testing to include things like PFAS, glyphosate, pharma and more — reducing them to 99.9%
Tested against 249 contaminants
Vitality
VitalityLow Energy and Brain Fog
H₂ crosses the blood brain barrier almost instantly, diffusing directly into the tissue, cell membranes, and sub-cellular compartments of your brain, increasing ATP production and powering your all your cells.
Support cellular repair and recovery
Hydration
HydrationDehydration
Dehydration is bad by itself. It also makes any health challenge worse. Silky smooth, great tasting UltraWater is easy to drink and offers proven benefit. When water tastes good, you drink more!
Naturally drink more every day
Transparency
TransparencyMarketing and Hype You Can’t Trust
The ionizer industry is crowded with MLM pricing, unproven claims, and filters with no published testing. AlkaViva solves that too: honest pricing, published EPA/NELAP-accredited lab results, and a 90-day guarantee.
Independent lab results & lifetime guarantee
Sustainability
SustainabilityCost, Waste and Hassle of Bottled Water
Bottled water is expensive. It is an eco-disaster and a hassle when you run out. An AlkaViva ionizer costs less than $0.50 / gal over 10 years, and you get water with science backed health benefits.
Under $0.50 per gallon over 10 years
Science
ScienceToxic Chemical Household Cleaners
Our ionizers make waters with different functional properties for things like stain removal, spotting, surface cleaning and disinfecting, skin care, mouthwash, wound-care, plants or cut flowers. Limitless uses!
Rich in molecular hydrogen per glass
UltraWater
UltraWaterWhat You Can Expect From UltraWater
UltraWater doesn’t just change your water. It changes the way you experience it every day.
Taste
Best-Tasting and Easiest to Drink
People say this is how water should taste. Clean, crisp and silky smooth.
“It just disappears in my body.” — AlkaViva customer, age 90
Hydration
You’ll Improve Your Hydration
When water tastes good and is easy to drink, you naturally drink more. When you drink more, your body has what it needs to function at its best.
Customers naturally drink 30–50% more water daily
Learn About Hydration Benefits
Performance
You’ll Feel The Difference
Many customers report changes within the first week: more energy, better digestion, improved clarity, fewer everyday aches and faster recovery.
- More energy
- Mental clarity
- Faster recovery
- Better digestion
More energy
Mental clarity
Faster recovery
Better digestionScience
3,000 Healthy Reasons You’ll Love Alkaline, Ionized, Hydrogen Water
More than 3,000 peer-reviewed studies show molecular hydrogen may provide therapeutic benefits across more than 200 disease models and health conditions.
3,000+ peer-reviewed studies · 200+ health conditions researched
Explore the Science
The AlkaViva Difference
The AlkaViva DifferenceWhy Choose AlkaViva Water Ionizers Over Other Brands?
See why AlkaViva is the best value in Water Ionizers. Not all ionizers are built the same. Compare the features that matter most for long-term health, performance, and ownership experience.
| Feature | Kangen | Tyent | Recommended AlkaViva |
|---|---|---|---|
Independent Lab Testing Published, third-party accredited results you can verify yourself. | Kangen  NSF 42 – only | Tyent  Hard to find. Missing | AlkaViva EPA/NELAP Accredited Testing published publicly |
Best Value, Transparent Pricing No distributor markups, no hidden costs, no sales pressure. | Kangen MLM markups to pay | Tyent Inflated markups. | AlkaViva Exceptional Value Fair $ Top performance. Honest pricing. |
Performance That Lasts Efficiency? Cleaning system? Maintenance? All add up to lasting performance. | Kangen Manual cleaning. Lots | Tyent Over-powered | AlkaViva Performance Over Time Super high-efficiency plus DARC |
Recommended
Want the full comparison?
Compare AlkaViva vs Kangen, Tyent and other leading ionizer brands
See the Full Ionizer Comparison
Real Results.
Real Testimonials.
Join thousands of families, athletes and wellness-focused homeowners who made UltraWater part of their daily routine.
Great Water System!
Enjoying our new water ionizer! Great tasting water and seeing benefits already with acid reflux
Excellent
Loving it so far. Easy install, and simple to run. We’re on catchment water on Big Island of Hawaii, and it tends to be a bit acidic out of the faucet. The water coming out of the Delphi definitely tests alkaline, up to 9. 3 on setting 5.
Delphi water Ionizer
Good purified water
5 star
My water machine changed my life. I have more energy, my skin is clear, and I feel overall more healthy. I highly recommend the DelphiH2
Great looking
I purchased and installed. The filter system is small enough to fit under the sink and the faucet looks nice too. I am looking forward to drink lots of water.
Everything has an issue eventually…
Everything has an issue eventually…it’s how the company handles it that makes all the difference. I purchased my Delphi about three years ago. Before then I had another alkaviva model that was gifted to me. Recently I had an issue with my device but thankfully I was able to send it in very easily, by having an actual person to speak with at alkaviva and it was covered under the warranty. I just had to pay for shipping . Considering our family of three goes through nearly 1000 gallons a year and a conservative estimate that alkaline water is $3 a gallon that’s $3,000 a year. Having my device without having to pay per purchase for water and lugging water back and forth is wonderful. If you are worried about installation: If you have little to no skill and already have the existing plumbing in place, which most of us do, my house was built in 1983, then you can follow the instructions with the online video very easily. I would say I’m nowhere near anything that would be considered a plumber but I was able to install it. I did already have the electrical outlet, the additional opening in the top sink and my mainline for water needed a fitting from Home Depot cause my plumbing is older. However even with the trip to the store it was done in about an hour. Uninstalling the old one and installing the new one .
AlkaViva customer video stories
Laura Jaster
Verified
Hi, I'm Claire. I'm 93 years of age and I played hockey and golf right up until I was 90 years old. And the reason I could play so long is I drank number four alkaline water. And I thank alkaline for all of those years. I'm Laura. I use the water for cooking, watering plants, foot baths. On our trips we would take a five gallon container with us if we were driving internationally. We take our Alka Pod. We've had our ionizer since 2009 and have updated maybe about four years ago to the H2 Delphi and absolutely love it. Wouldn't trade it for anything. Now back to the Olympics.
VerifiedWojtek
Verified
Hi, my name is Victor. I live in New York area. I'm very happy to using my Delphi 2 machine for filterizing water which is. I try to show you where is that. You probably see this here. I'm using this like for eight years. This is machine is under the counter. This is only tap which I can easily use that I use like about five to eight glasses a day every. Every day. Me, my wife and my kids. This is so healthy, so good stuff, so good quality. I am anxious to share my experience with everybody. And I recommend it highly to use any Alkaviva products. So that will be it. Thank you.
Sean Shaffer
Verified
Hi, my name is Shawn. I love Our Alkaviva Delphi H2 under sink water ionizer for the ability to have such a powerful overall health supplement right below my counter. It's out of sight but with easy access right at the sink to a tool that provides excellent overall water filtration, including protection from fluoride in the water source, excellent hydrogen infusion that really helps me feel so much better throughout the day through a higher quality water source than we can get in most places. It also has a fully automatic self cleaning. It just really makes the process of clean and healthy water so much easier. And worry free about, you know, it's don't have to worry about if my machine needs to be cleaned or I might be getting something sick, you know, some sickness or illness from it. It's just a, it's a very well put together, well thought out machine. And knowing that the science and mechanics behind the device is top of the line really gives me peace of mind knowing that I am investing in my health and those that I care about. I have and I will continue to recommend Alkaviva water ionizers to anyone that I know that is interested in improving their overall health and the importance of good quality water sources available through Alkaviva.
Certification & Quality You Can Trust
BBB Accredited Business
In business since 2003, we’ve been continuously BBB accredited and A+ rated since 2007.
Water Quality Association
Member in Good Standing
Member in Good StandingWater Quality Association
Our promise and commitment to you is integrity and certification of products and staff.
Accredited Lab Testing
249 Contaminants Tested
249 Contaminants TestedEPA/NELAP Accredited Testing
Our filters remove 99.9% of 249 contaminants. Proven in EPA/NELAP certified lab testing.
International Safety Certified
ISO · CE · RoHS · TÜV
ISO · CE · RoHS · TÜVInternational Safety Standards
Manufactured with ISO, CE, RoHS, and TÜV certifications for safety standards.
Owner support
White glove help before and after your purchase
Talk with an AlkaViva specialist about installation, operation, filters, or service.
Product guidance
Get help selecting the right model and finish for your home.
Learn more
Installation support
Specialists can answer countertop and undersink installation questions.
Learn more
Long-term service
Receive direct support for filters, maintenance, and warranty service.
Learn moreDelphi H2 Undersink 9-Plate Water Ionizer help
Questions about the Delphi H2 Undersink 9-Plate Water Ionizer
Product-specific answers for the Delphi H2 Undersink 9-Plate Water Ionizer.
Is the Delphi H2 Undersink 9-Plate Water Ionizer a undersink model?
The Delphi H2 Undersink 9-Plate Water Ionizer is designed for undersink installation.
How many plates does the Delphi H2 Undersink 9-Plate Water Ionizer use?
The Delphi H2 Undersink 9-Plate Water Ionizer is configured with 9 plates.
Where can I confirm current pricing and finish options for the Delphi H2 Undersink 9-Plate Water Ionizer?
Current pricing, sale pricing, SKUs, and available finishes are loaded directly from the AlkaViva BigCommerce catalog on this page.