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Best Reverse Osmosis System For Drinking Water In 2023

Best Reverse Osmosis System For Drinking Water


You’ve come to the right place if you’re looking for the best reverse osmosis system for drinking water.

Reverse osmosis is a process that removes contaminants from drinking water and produces fresh water for plants and animals. The best reverse osmosis system can remove 90% of the contaminants in your drinking water, which will make it safe to drink.

I gathered the reviews of the best reverse osmosis water filtration systems that can supply you with satisfying service due to the rising quantity of these RO systems on the market. We’ll also overview different types of RO systems, including whole-house RO and countertop RO models. 

List Of Best Reverse Osmosis System For Drinking Water

The following is a list of the best reverse osmosis systems for drinking.

  • APEC Water Systems ROES-50 Reverse Osmosis Water Filter
  • AquaTru – Countertop Water Filtration System
  • iSpring RCC7AK, NSF Certified 75 GPD, 6-Stage
APEC Water Systems ROES-50 Reverse Osmosis Water Filter
  • Brand: APEC Water Systems
  • Model Name: ROES-50
  • Material: Apec
  • Item Dimensions LxWxH: 16 x 5.25 x 17.5 inches
  • Included Components: ROES-50
  • Item Weight: 25 Pounds
  • Purification Method: Reverse Osmosis
AquaTru - Countertop Water Filtration System
  • Color: White
  • Brand: AQUA TRU
  • Capacity: 1 Liters
  • Material: Plastic
  • Item Dimensions LxWxH: 14 x 12 x 14 inches
  • Included Components: AquaTru Unit, Filters
  • Purification Method: Reverse Osmosis
iSpring RCC7AK, NSF Certified 75 GPD, 6-Stage
  • Color: White
  • Brand: ISpring
  • Power Source: Corded Electric
  • Capacity: 75 Gallons
  • Model Name: RCC7P-AK
  • Item Dimensions LxWxH: 15 x 8 x 18 inches
  • Item Weight: 20 Pounds
  • Purification Method: Reverse Osmosis, Alkaline, Activated Carbon, Carbon block

APEC Water Systems ROES-50 Essence

The APEC ROES-50 is the best-rated reverse osmosis drinking water system to improve the quality of your tap water. This five-stage reverse osmosis water filtration removes up to 99 percent of the most common contaminants in tap water, including lead, chlorine, bacteria, copper, fluoride, and iron. For improved performance, the filtration system contains double carbon blocks. The water may taste “flat” compared to untreated drinking water because there is no remineralization filter.

Benefits Of APEC Water Systems ROES-50 Reverse Osmosis Water Filter
  • Reverse osmosis water good to drink product was designed, produced, and assembled in the United States to ensure water safety and your health.
  • WQA is certified for clean, refreshing, crisp tasting water that tastes better than bottled water for an unlimited period.
  • America's No. 1 rated water filtration company assures a trouble-free, noise-free system for long-lasting, trustworthy, clean drinking water with 20 years of experience.
  • A two-year extended manufacturer warranty is available upon registration.
  • High-quality leak-free quick connect fittings do not require additional lock clips to seal a leak.

This reverse osmosis system is commonly seen beneath kitchen sinks, providing filtered water for drinking and cooking. The production is 50 gallons per day (GPD), sufficient for a three- to four-person household.

The APEC ROES-50 comes with a 4-gallon storage tank, a faucet dispenser, an APEC top-tier supreme set, tubing, and an installation kit. The reverse osmosis membrane and carbon filter have a filter life of six to twelve months for stage one to three filters and two to four years for the reverse osmosis membrane and carbon filter.


  • Leakage-free connect fitting
  • Remove 99% containments 
  • Supreme quality
  • Two years guarantee
  • Easy to install


  • There may be a clogging issue.

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AquaTru – Countertop Water Filtration System

The AquaTru Countertop RO water filtration system is NSF certified for 42, 53, 58, 401, and p473 pollutants removal from drinking water. It removes chromium-6 (97.2%), Bisphenol A (99.0%), cyst (99.99%), lead (99.1%), chlorine (96.6%), fluoride (93.5%), PFOA & PFOS (97.5%), VOCs (most >99%), and certain pharmaceuticals.

Benefits Of AquaTru - Countertop Water Filtration System
  • The best reverse osmosis drinking water system's job is to filter out more than 99 percent of chlorine and chloramine from tap water, which would otherwise harm the semi-permeable membrane.
  • For best efficiency, anticipate changing old filters every six months to 12 years.
  • This RO water purifier contains an on/off switch that allows users to turn the device on and off based on their filtered water requirements.
  • AquaTru's water filters have a 30-day money-back guarantee and a one-year warranty.

The entire procedure of the best reverse osmosis drinking water system takes only a few minutes. Either keep the water in the dispensing tank or transfer it to a pitcher or other refrigerator storage tank.

This water filtration system is sleek and modern in style. It uses ultra-reverse osmosis technology to eliminate a wide range of impurities, resulting in a high-quality product that tastes as good as bottled water.

AquaTru is the best reverse osmosis system for drinking water choice among renters and those who wish to purify water without taking up counter space. The unit, which measures 18 x 18 x 15 inches and plugs into a typical household socket, sits on the counter. The sediment, carbon, and reverse osmosis filters are housed in three cartridges.

This countertop reverses osmosis filter is supposed to last 600 to 1,200 gallons of filtered water, so the filtration frequency will determine when they need to be replaced—a countertop purification system for a reverse osmosis system that doesn’t require any plumbing or installation.

Fill the tap water tank (1-gallon capacity) with tap water, wait for it to pass through all four stages of filtration, and then use the clean water tank to dispense purified water. The AquaTru is one of the best tankless reverse osmosis systems that produce around 3 liters of filtered water for every gallon of tap water.

This countertop reverses osmosis filters unit can be kept on a kitchen counter and supply clean, pure drinking water when activated. It offers the simplicity of a simple setup without calling a plumber for assistance.


  • There is no need for plumbing.
  • Indicator light for filter life
  • Setup is quick and easy, taking only 3 minutes.
  • Great water taste
  • Simple to use
  • Certified against NSF standards


  • Only a 3-quart purified water tank is available.

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iSpring RCC7AK, NSF Certified 75 GPD, 6-Stage

iSpring RCC7AK is a reverse osmosis membrane that filters out particles as small as 0.0001 microns, bacteria, silt, VOCs, and other pollutants are removed. 

Benefits Of iSpring RCC7AK, NSF Certified 75 GPD, 6-Stage
  • The RCC7AK multilayer membrane has a daily capacity of up to 75 gallons.
  • A brushed nickel solid brass faucet with no lead is supplied. Your ice maker, coffeemaker, and other appliances can connect to the output lines.
  • The system comes with a one-year money-back guarantee, a one-year warranty, and lifetime support from our Atlanta, Georgia offices.
  • 45-70 PSI incoming water pressure
  • The temperature range for operating water is 40-100 °F
  • 750 ppm maximum total dissolved solids
  • Install this RO system away from extremes of heat and cold and direct sunlight. Avoid slamming, dropping, or dragging the system to avoid cracks and leaks.

The complete system fits beneath a typical kitchen sink and is designed for DIY installation.

According to Consumer Reports, it’s the best under-sink reverse osmosis consumer reports. It does, however, remove minerals and change the pH of the water. Choose a reverse osmosis system with a remineralization filter, such as the highly-rated, best reverse osmosis system like spring RCC7AK, if you want that familiar “hard water” taste.

This six-stage filtering system features an alkaline remineralization filter as the last stage. The iSpring RCC7AK’s last stage produces mildly acidic water instead of the slightly acidic water produced by normal five-step reverse osmosis systems.

The alkalinity filter and the filters for stages one through three will need to be changed twice a year. The reverse osmosis membrane should be replaced every two to three years, and the post-carbon filter should be replaced every year.


  • It removes potentially harmful pollutants from water.
  • 6-stage multilayer filtration for alkaline demineralization.
  • Easy to install
  • No leakage
  • 100% customer satisfaction


  • Problem with clogging

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Buyer’s Guide: How To Choose The Best Reverse Osmosis Water System For Home

According to the consumer reports, when buying the best reverse osmosis water filter, you should evaluate whether you need to filter tap or well water, your plumbing needs, desired water production, the number of filtering stages, and installation requirements.


I’ve examined here require some setup level before they can function. Some Reverse osmosis water filtration systems are intended to be permanently installed under a sink, like Frizzlife under sink water filters, with connections to the cold water feed and waste pipes, etc.

Some are tankless RO systems that are very easy to install and require no plumbing or drilling tools. Technologies have succeeded so far. Even a very sleek type of RO water filter is available for apartments that have benefited homeowners and renters for their simple installation.

These systems’ installation is identical, and anyone with minimal DIY skills and tools can complete these systems’ installation. The only difficult component is drilling a mounting hole for the filtered water faucet in the sink/counter if one does not already exist. 

Consider the systems that are simple to install and easy to maintain.

Flow Rate And Capacity

While reverse osmosis filters can filter water as needed, they require refilling time. If you’re only going to use it for drinking water, a device with a slower refill rate and a smaller tank will suffice. A reverse osmosis system’s purification capacity is normally measured in gallons.

Choose a capacity that corresponds to how much water you and your family consume daily.

Life Span

What is the lifetime of a reverse osmosis water filter? If pieces of a reverse osmosis system (such as the faucet and storage tank) are repaired and maintained as they wear out, the system can survive for years, even up to 15 years!

Follow the membrane filter schedule and clean/sterilize the system once a year.

Removal Of Contaminants

Impurities and contaminants such as chlorine, pesticides, nitrates, bacteria, fluoride, and even arsenic can be found in treated water. The only way to get rid of these impurities is to filter them out, and reverse osmosis systems are guaranteed to get rid of everything.

A wow factor is that if your water contains bacteria and viruses, consider the reverse osmosis systems with UV light. 

Storage Tank 

Because reverse osmosis systems are too slow to produce water on demand, they usually need a water storage tank. The tank has a compressed water bladder to ensure quick flow when opening the water dispenser.


In removing dissolved particles from water, reverse osmosis reduces alkalinity or lowers the pH of the water. The water is slightly acidic due to the decreased pH. Although acid water is corrosive, adding an acid-neutralizing filter, such as a calcite filter or an alkaline water filter, raises the pH and adds mineral flavor to the water.

But reverse osmosis can leach minerals from the drinking water. So, you should consider systems like whole-house alkaline RO water filters that can add minerals to your drinking water for proper taste and safety.


You might not think of a reverse osmosis water filtering system as the cheapest option, but the price is well worth it when you consider the alternatives. You won’t have to spend money on your filtered water from the store, which adds up to a high annual cost if you do the math.


Periodic maintenance is required for all RO systems at some point, and the periods vary depending on the type of system and the quality of the water entering the filters. Pre and post-filters should be replaced every 6 to 12 months, depending on how much you use them.

The most effective way to know for sure is to test the water before and after your system treats it. Manufacturers provide suggested timetables, but the best way to be sure is to test the water before and after your system has processed it. With a simple TDS meter, you can do it yourself.

All RO membranes have a life cycle of between 1 and 5 years. The longer the membrane lasts, the better the feed water quality is. Making sure to change the pre-filter membranes as needed is one approach to help extend the life of the membrane. Air gap reverse osmosis is one of them.

Although most RO systems contain easy-to-change filters, the process differs by brand. In other circumstances, all required is to lift the activated carbon filter slightly out of the way at the base, press a button on the holder, and the filter will come away. Other filters pull out, whereas the new one pushes in. Finally, there are various sorts of filters found in housings.

People Also Need To Know: Is the Reverse Osmosis System Good For Drinking Water

The reverse Osmosis System is an advanced filtration system that uses pressure to purify water. It works by forcing water through a semi-permeable membrane, which captures and removes contaminants, including salt, lead, bacteria, and other chemicals. Hence, it’s good for drinking.

But it can make water dead, reverse osmosis deionization water, what’s it good for? No, that isn’t the case. According to the World Health Organization, low mineral (TDS) drinking water generated by reverse osmosis or distillation is not safe for long-term human consumption and can harm individuals who consume it.

According to research, it is stated that; “During a prospective epidemiological study of gastrointestinal health effects associated with the consumption of drinking water produced by reverse-osmosis domestic units.

Experts demonstrated a correlation between the bacterial counts on R2A medium incubated at 35 degrees C and the reported gastrointestinal symptoms in families who used these units.

A univariate correlation was found with bacterial counts on the R2A medium at 20 degrees C but was confounded by the bacterial counts at 35 degrees C.

These observations raise concerns for the possibility of increased disease associated with certain point-of-use treatment devices for domestic use when high levels of bacterial growth occur.”

What Are The Benefits And Drawbacks Of Reverse Osmosis Water?

Benefits: Reverse osmosis water is a great alternative to bottled water. It is better for the environment, and it’s healthier than tap water because it doesn’t contain chlorine or fluoride.

The disadvantage of RO water is that it can dramatically diminish these beneficial minerals, which can help with heart and muscle function. Those who rely on reverse osmosis for their primary water source may have fatigue, muscle cramps, overall weakness, and, in severe cases, cardiovascular problems.

However, reverse osmosis systems can be very expensive, especially if you have a large family.


Which Is Better: Filtered Water Or Reverse Osmosis?

When you consider that reverse osmosis outperforms bottled water in terms of water quality, it outperforms bottled water in terms of sustainability by not utilizing single-use plastics. It costs substantially less than bottled water, and the option is simple.

How To Install A Refrigerator-Only Reverse Osmosis System?

Suppose you’re wondering if an RO system can be connected to a refrigerator or ice machine. yes! The incoming cold water line, drain, and an independent faucet are connected to an under-counter reverse osmosis system. A water treatment professional can also connect the RO unit to your refrigerator and ice maker.

What Is The Optimal Alkalinity Level (not pH) For Drinking Water Through A Reverse Osmosis Water Filter System?

Reverse osmosis water is, in fact, acidic. While tap water in Arizona has a pH range of 7.1 to 8.4, reverse osmosis water has a pH of roughly 6.5, indicating more acidity.


It’s critical to select the appropriate reverse osmosis system for your house or company. Make an informed decision based on customer evaluations, the manufacturer’s reputation, and your specific needs. If you have further questions, don’t be scared to ask them. I understand that purchasing a reverse osmosis water filter system is a big decision, and I hope that my reviews have taken some of the stress out of it for you.

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