Water Ionizer Comparison - Compare Under Counter Water Ionizers
Which Water Ionizer is Best? Call for Sale Prices855-843-6506
Below are the Top 5 Under Counter Ionizers compared side-by-side for your convenience.

Jupiter Delphi™

Life Ionizers MXL-9 UC

AlkaPrime S-9U

Enagic® SD501

Alka Fresh
Five Plates old technology.
Low power.
Older technologies &
over-priced. Medium power & large plates.
Titanium/Platinum Plate Specifications
The more plates and the larger the size, the better water will be produced.
This must be coupled with a high power supply.

Type of Power System
Some machines use the old-fashioned transformer. Look for an ionizer that uses an SMPS power
system for longer life, better warranty and the maximum optimization of your water.

(Switch Mode Power System)
Power System)
Power System)
Interior and Pre-filtration
The more filters, the purer the water going into your machine. Ionizers with 2 interior filters and custom pre-filtration systems are the best.

with free pre-filter system
with free pre-filter
with no pre-filter


Yes, standard feature



Warranty and Service
The length of time a distributor has been established is important when it comes to the warranty so that they will be around to service your ionizer. Look for a lifetime parts warranty and a good labor warranty. Many of these companies cover parts but hit you with big labor bills. Optimally a lifetime parts and labor warranty makes it a great system.

all ionizer parts (not accessories) and labor costs in the first 5 years. Also requires a 20% restock fee and 14 days to return unit.
Alkaline/pH and Antioxidant Potential/ORP Specifications
The best health results come from the water that is the most optimized. So look for a high negative ORP (antioxidant potential) and a high alkaline mineral level (pH). The best system produces high – ORP at a drinkable pH level.


No adjustments possible

Yes, programmable

Yes, programmable

Yes, programmable

Yes, programmable
Optional Features
The more advanced companies offer useful upgrades.



Yes, optional





Optional



Distributor Information
It is best to deal with a more established dealer who sells Korean or Japanese ionizers. The longer they are established the more probable are they to be there to service your system and provide support.

Note: all specifications and information has been resourced from manufacturer’s websites
and other marketing materials. If any inconsistencies are noticed, please contact us.
*Wider pH range is available with use of chemicals
Ionizer Features Explained
Number of PlatesTotal numbers of plates in the ionization chamber, GRID plates are more efficient than ordinary plates. Look at the thickness of the Platinum on the Titanium plates as this determines the life of the plates. |
Power SupplySMPS (Switched Mode Power Supply): An energy saving feature that allows higher power levels; cooler running; lighter weight; and ensures the ionizer lasts longer. Transformers are generally considered to be obsolete as they run hotter and do not last as long. They are also heavier. |
FiltersMultiple filters with multiple stages allow for more efficient filtration. Custom pre-filters are an added plus as they extend the life of the internal filters. It is best to filter the water of some toxins before it even reaches the internal filters. There are some companies that review the Federal Water Report for your source water and provide custom pre-filtration – this is a benefit to you. |
Trial Period*This is the amount of time an ionizer company will let you try out the machine. All water ionizers are subject to a return fee during the trial period. |
pH Level*pH is a measure of the potential hydrogen in the water. It compares the amount of hydrogen available to the amount of oxygen available. If there's more hydrogen than oxygen, you get an alkaline pH. |
Hard Water AdjustmentHard water can affect the quality of the water an ionizer produces. Adjustment allows you to get the best performance possible. Custom pre-filters can help address this as it can be a big problem for ionizers. |
ORP LevelsORP (Oxidation Reduction Potential) measures the antioxidant potential of alkaline water. ORP performance is dependent number & size of plates; power and type of power supply to plates; plate design (flat or GRID) and on the tap water quality |
UV Light DisinfectionDesigned to inactivate bacteria and cysts in the water, makes water safer. |
Vitamin C Ceramic Block® FiltrationVitamin C Ceramic Block is a filtration technology that uses vitamin C in a ceramic matrix. This is the only filtration technology that is effective against chlorine and chloramines |
Energy Frequency TechnologyEFT harnesses the power of Quantum Biology to energize water with 205 healthful energy frequencies. |
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