Aquasana OptimH2O Reverse Osmosis Review AQ-RO 2023

Is the Aqusana OptimH2O Reverse Osmosis system good enough to consider?

Is it worth to buy for your home and family?

Well, in this in-depth Aquasana OptimH2O Reverse Osmosis review, I’ll share with you all the important things you should know about this RO system so that you know whether it is right for you or not.

What is the Aquasana OptimH2O Reverse Osmosis AQ-RO-3 All About?

What is the Aquasana OptimH2O Reverse Osmosis AQ-RO-3 Images

The Aquasana OptimH2O Reverse Osmosis + Claryum is an under-sink RO water filtration system that capable to effectively remove 88 contaminants including fluoride, arsenic, mercury, asbestos, lead, sediments, and chlorine.

The combination gives you the best of both worlds in terms of contaminants removal and beneficial minerals.

The Aquasana OptimH2O Reverse Osmosis will in charge of removing the majority of harmful contaminants in water including dissolved solids while the selective Claryum re-mineralizes the filtered water by adding beneficial minerals like calcium, magnesium, and potassium to improve the water taste and alkalinity.

Tip: Reverse Osmosis is a process that will remove most impurities from the water including the minerals, leaving pure RO water that tastes flat and slightly acidic (pH < 7).

The Aquasana OptimH2O Reverse Osmosis Review

Now, let’s have a look at the important facts and information about the Aquasana OptimH2O Reverse Osmosis system AQ-RO-3.

The Aquasana OptimH2O RO + Claryum (AQ-RO-3) Filtration Stages

The Aquasana OptimH2O RO + Claryum (AQ-RO-3) Filtration Stages image

The OptimH2O system consists of 4 filters and 6 stages of filtration, which are:

  • Filter 1: Activated carbon filter
  • Filter 2: Reverse Osmosis filter
  • Filter 3: Selective Claryum filter
  • Filter 4: Claryum remineralization filter

Stage 1: The activated carbon filter is used to remove chlorine chemicals to protect the RO membrane from damage. The activated carbon will also remove other chemicals and organic compounds such as bad smell and odor, pesticides, herbicides, volatile organic compounds (VOCs), and MTBE.

Stage 2: The RO membrane will remove most of the contaminants including arsenic, fluoride, dissolved solids, radium, nitrates, and bacteria.

The Selective Claryum filter consists of 3 stages of filtration, which are the catalytic carbon, ion-exchange, and sub-micron mechanical filtration.

Stage 3: The catalytic carbon media can effectively eliminate both common disinfectants which are chloramines and chlorine.

Stage 4: The ion-exchange stage will remove charged contaminants like mercury, lead, iron, and more heavy metal ions.

Stage 5: The sub-micron mechanical filtration will eliminate substances like asbestos, Giardia, Cryptosporidium.

Stage 6: The remineralization filter is used to replenish the essential minerals like calcium, magnesium, and potassium into the RO water to make it healthier and tastier to drink. The addition of minerals will also improve the water pH level and alkalinity.

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Aquasana OptimH2O Reverse Osmosis Review: The Pros of AQ-RO-3

This powerful RO system packed with various benefits, and let’s go through some of the best ones:

First, the powerful water filtration performance.

The Aquasana Reverse Osmosis AQ-RO-3 has a RO membrane that can remove a wide spectrum of contaminants including dissolved solids and bacteria.

The system also comes with a Selective Claryum filter to reduce chloramine, chlorine, arsenic, lead, mercury, pharmaceuticals, pesticides, herbicides, and more.

Next, the system also comes with an ion-exchange filter that can effectively eliminate heavy metals like lead, iron, mercury, and more charged impurities.

As the first three stages of filtration remove almost all the impurities from water including the minerals, the last remineralization filter is used to re-mineralize the filtered water by adding beneficial minerals like calcium, magnesium, and potassium into the water to improve water taste and pH level (alkaline), and make the filtered water more healthy to your body.

Contaminants reduction for Aquasana OptimH2O RO System

Note: Refer the Performance Data Sheet here for more info.

Next, the upfront cost of the Aquasana OptimH2O AQ-RO-3 is inexpensive at this range of performances and features.

When you purchase it with a promotion price, it is even worth every dollar you pay.

Moreover, the RO system is tested and certified against NSF/ANSI Standards 42, 53, 58, 401, and P473 for the removal of 88 contaminants.

Besides, the RO system comes with a 90-day satisfaction guarantee and a 2-year limited warranty to protect your interest.

The Aquasana support team and customer service are great too in case you have any questions or face any difficulties with the product.

Lastly, 100% lead-free all metal designer faucet.

The modern and stylish designer faucet with the finishing of your choice (chrome, brushed nickel, and oil-rubbed bronze) make your kitchen looks even great!

Faucet choices for Aquasana OptimH2O RO system

Aquasana OptimH2O Reverse Osmosis Review: The Cons of AQ-RO-3

While the RO system is great, it does come with some drawbacks that you may want to pay attention at.

The first drawback of this Reverse Osmosis system is the low daily production rate which is about 13 to 32 gallons per day only.

Most RO systems I recommended before have about 50 to 100 GPD production rate, which is 2 to 5 times higher than the Aquasana OptimH2O system, and one of my favorite tankless RO systems has a 400 GPD output rate.

However, the cost of this Aquasana AQ-RO-3 is lower compared to those high output RO systems, so if budget is your concern and your family’s daily water consumption is not high, it is the great choice at this price range.

The second drawback is the replacement filter cost is on the high side compared to other RO systems in the market.

Averagely, the annual maintenance cost is about $160 to $200 for the Aquasana OptimH2O RO system to run efficiently.

In other words, the upfront cost for this Aquasana RO system is low but the yearly maintenance cost is high, so might not be an excellent choice in long run.

But if you are more concerned about the short-term cost, then this Aquasana RO system is the right fit for you.

Note: You can join the Water for Life program to get the replacement filters at a 15% discounted price and free shipping to your doorstep.

The Aquasana OptimH2O RO Review: Installation & Maintenance

The RO system is simple to install if you have some basic plumbing skills and knowledge.

Just follow the step-by-step instruction manual and contact customer support if needed any help.

The filter cartridges are also easy to replace during routine maintenance.

Aquasana OptimH2O Installation & Maintenance images

When to Replace the Aquasana OptimH2O Filters?

The actual lifespan of each filter depends on the quality of water and usage, but below is the expected lifespan of them:

Activated Carbon filter: Lasts for 6 months or 365 gallons

RO membrane: Lasts for 1 to 3 years

Claryum post-filter: Lasts for 6 months or 365 gallons

Claryum Remineralizer: Lasts for 12 months

Is the Aquasana OptimH2O RO System Worth Buying?

To summarize, the Aquasana OptimH20 Reverse Osmosis + Claryum is an effective combination in water filtration to ensure your family gets the cleanest and safest mineralized drinking water.

The first 5 stages remove almost every impurity from the water, while it is pure, but the taste could be flat for some people and stop them from drinking enough water.

However, with the brilliant addition of a mineral filter at the last stage which put in beneficial minerals back into the water to improve the water taste, now your family members can enjoy clean and great-tasty water all day long to keep themselves hydrated.

It is worth the investment considering its fair price and the features it offered.


For small and medium families who are looking for the clean and tasty drinking water right from their tap, the Aquasana OptimH2O Reverse Osmosis system is an affordable choice.

The RO system does a great job of getting rid of contaminants like chlorine, chloramines, fluoride, bad smell, and more from your water, and the performance is backed by 5 NSF certifications for your peace of mind.

Have any questions regarding this Aquasana OptimH2O Reverse Osmosis review?

Just let me know and I’ll sort it out for you.

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