Water Ionizers and reviews from Alkaline Water Plus Skip to main content

AlkaViva Delphi H2 Undersink Water Ionizer


We have a low-price-guarantee. 

The Delphi H2 Water Ionizer is strong. It was built to withstand pressure, and because of that is the only undersink water ionizer I recommend. When you install a water ionizer under the sink, you need to know it won't develop a leak over time. Because undersink water ionizers are out of sight and operate up against gravity with high and constant pressure, they need to have the strongest resistance to leaks. I don't recommend any other undersink water ionizer than the Delphi H2. 

The Delphi H2 Undersink water ionizer has 9 solid, high-efficiency, super-high-performing, platinum-titanium-electrodes which deliver more antioxidant power than any other undersink water ionizer.

UltraWater filtration is also one of the features of the Delphi H2 under-counter water ionizer. You can get no better filtration for your water than UltraWater filtration - anywhere or at any price!

The Delphi H2 is not only the best in strength and filtration, but also in performance and reliability. The DELPHI H2 undersink water ionizer is enhanced with AutoAdjust™, which automatically adjusts the ionizing power, giving the best performance and ionization for your particular water source. 

The fact that the Delphi H2 water ionizer has Hydrogen Infusion Technology means it will give you the most available molecular hydrogen of any other undersink water ionizer. After a number of years in the making, the Delphi H2 is really the premium undersink water ionizer available.

All of the H2 water ionizers are designed to be absolutely the most functional water ionizers. Through a proprietary method of converting AC power to DC the machine becomes a powerhouse for production of H2-antioxidants. The AlkaViva Delphi H2 water ionizer has has been designed with phenomenal "Hydrogen Infusion Technology" to give you the most available molecular hydrogen of any undersink water ionizer.  

Another feature that separates out BEST water ionizers from all the rest is continuous-cleaning of the electrodes inside the water cell. With continuous-cleaning you can be secure in knowing your water ionizer will stay capable of like-new performance years and even decades into the future. Even the slightest film of calcium on the electrode plates can reduce a water ionizer's capability of getting great ORP and H2-levels, so continuous-cleaning (never letting calcium stick to the plates) is a big deal.

Don't settle for second best when it comes to an undersink water ionizer. It's very important to know you have the highest quality of water ionizer construction, filtration and performance. You will (I'm sure) want to put a lot of trust that this machine is the best and will continue to be the best, with very little maintenance, well into the future.

The AlkaViva Delphi H2 is The Definition of a State-of-the-Art Water Ionizer

With the most advanced features and technology, such as the AutoAdjust Optimizer and SmartSwitch, the Delphi H2 water ionizer will provide you with years of the highest quality performance. The Delphi H2 water ionizer is an upgrade of the Ultra Delphi water ionizer.

Industry's best technology is used in the Delphi H2 Water Ionizer

  • AutoClean (continuous-cleaning of the electrodes) with advanced cleaning capability
  • AutoAdjust™ optimizer automatically adjusts the ionizing power giving the best performance and ionization for your particular water source.
  • Smart Switch™ next generation SMPS power supply provides the most stable and efficient power platform.
  • 9 high-efficiency solid platinum titanium electrodes deliver more antioxidant power than any other water ionizer.
  • Hydrogen Infusion Technology
  • Advanced self-diagnostic MICOM (mini-computer) circuitry system
  • UltraWater Filtration
  • Lifetime Warranty

Smart Switch: Advanced SMPS Technology

The Delphi H2 water ionizer uses the most-advanced Switch Mode Power Supply technology in order to operate it’s unique AutoAdjust™ feature. Current generations of SMPS offered by other ionizer companies cannot automatically adjust voltage on demand to match varying water conditions. The advanced SMPS used in the Delphi H2 is able to do that. SMPS is known as a power-saving option as it only uses the amount of power necessary.

Advanced Plate-Cleaning Technology

All water ionizers have cleaning systems which are crucial to performance and durability, but all cleaning systems are not created equal. One more important advantage of AutoAdjust™, is that calcium and other minerals cannot attach themselves to the electrodes. With the electrodes switching on and off so quickly and pulsing differing widths, minerals don't have the time or stability to form a bond with the surface of the electrode. Other less sophisticated water ionizer brands cause you to periodically wait for your alkaline water. The AutoClean reversal mechanism operates in the background of the Delphi H2, always cleaning and never interrupting the flow of alkaline drinking water. You never have to wait or worry.

Advanced UltraWater Filtration

Patented dual filters consisting of 0.1 micron filters combine with space-fiber technology to efficiently filter almost any tap water. The filter life change indicator lets you know when it’s time to replace your filters. You have the ability with two filters to really make sure your water is filtered properly. These advanced filters also have anti-scale filtration built in.

Advanced self-diagnostic

MICOM circuitry system allows for the advanced technology to function and protects your investment. Smart Sensors signal excessive temperatures either from power surge or water temperatures and shut your ionizer down to protect it.

Advanced Electrode Technology

9-Ultra Efficient Electrodes Made of the highest grade Titanium / Platinum for durability and efficient ionization.  

Advanced Protection Against Hard Water

Hard water can be very destructive of a water ionizer, and often your warranty isn't protected against it. But the Advanced design of the H2-Series water ionizers protects against hard water better than any other water ionizer. For hard water protection, the Delphi H2 is in a class of its own.

Sleek Design

Modern, Sleek Design Small footprint and elegant black and stainless-look design complement any modern kitchen décor. Experience the elegance and efficiency this ionizer!

Other Features of the Delphi H2 Water Ionizer:

  • UltraWater filtration ensures you peace of mind, knowing your water is not only alkaline and ionized, but cleaned.
  • Sleek mirror-faced, elegant design

Custom Colors


If you would like a different color for your faucet, than the ones pictured above, please contact us: support@alkalinewaterplus.com, or put your request in the comment box of your order. Delivery of a custom color order may take a little longer, i.e., a week or two. It depends on available stocks. 


The parts within the Delphi H2 water ionizer and all AlkaViva water ionizers are of fantastic quality. They should last a lifetime. It's very rare that any of our water ionizers would have a defective part. But for your protection, all AlkaViva water ionizers have limited lifetime-parts/labor warranties. The repair/servicing depot is located in Reno, Nevada. Here are some extra things we do for you regarding your warranty:

  • We will register your water ionizer for its AlkaViva Lifetime Parts & 5-Year Labor Warranty for you.
  • Also, for no extra charge to you, we will increase the "5-Years" of Labor to 10-years. Just say "upgrade warranty to 10-years labor" in the comment section of the order form.


Excellent Delphi Water Ionizer Accessories!

  • The Delphi H2 comes with the following accessories, which have 90-day warranties: diverter, user manual, flexible hose [spout], screw anchors, hose clamp, collet tool, tubing, grey hose, reagent drops, fuse.
  • The plastics used in our water ionizers are NSF certified to be BPA free, PE free, ABS free and food grade.

Manual & Instructions

UltraWater Filtration

We have never seen anything even close to the filtration capabilities of UltraWater Filters. You can rest assured you have the very best water filters with the Delphi H2 water ionizer.

Lab Results for UltraWater filter


Read more information about UltraWater filters.

Note: A water ionizer is a life-long investment in your health. As such, all of our water ionizers are covered with lifetime warranties. If you ever need a repair, you will need all of your original packing and plugs and other cautions for safe shipping. Visit our Safe Shipping & Receiving of a Water Ionizer page.

We are confident you will enjoy many years of great tasting and healthy water from your Delphi water ionizer.



  • Voltage:  120V [60Hz]
  • Power:  Newest, most advanced form of SMPS
  • Watts:  235W
  • Works with up to 72 psi of water pressure.
  • Dimensions:  12.5” wide x 14.5” high x 5.5” deep
  • Weight:  13 lbs. 
  • Suitable Tap Water Temperature:  40 - 86F
  • Protection Mechanisms:  2 temperature sensors built-in and fuse to protect machine from overloads.
  • Electrolysis Method:  Continuous and Automatic 
  • Electrodes:  9 medical grade Platinum coated Titanium plates using the patented SmartDesign technique 
  • Flow-Rate:  1.5 liters/min. to 2.5 liters/min. 
  • Settings:  Alkaline Water (5 Levels), Purified Water, Acidic Water (2 Levels)
  • Cleaning:  Automatic and Continuous Cleaning  
  • Filter Replacement:  2 Filters offering 13 stages of filtration
  • Filter Life: 1,000 gallons
  • Voice Recognition:  Yes (can be adjusted)
  • Display:  LCD Touch Screen (Letters and Images)
  • ON/OFF Valve Method:  Real-time Flow Control Knob
  • Mineral Port:  Yes, in each filter. 

All Water-Ionizer Customers Please Read:

We have many pages in this website designed to help you make the right choices for your water ionizer and that includes proper filtration as well. If you have well-water, very hard water, very soft water, a whole-house water softener, or another specific water-source issue, please read the appropriate page(s) listed below for your convenience before you order. Or contact us for a free water quality consultation.