Top 5 Best Reverse Osmosis System for 2020

#1 Recommended


Home Master TMAFC

Our No.1 recommended reverse osmosis system.

Budget Pick


iSpring RCC7

Value for money among all reverse osmosis system.

Countertop Pick



An easy fix system, up and running within minutes.

Did you know that Singapore has the cleanest tap water in the world?

The government uses reverse osmosis(RO) as part of the process to translate everyday wastewater into the clean water due to the lack of water source.

The core filtration element is the semipermeable RO membrane which is 0.00001-micron rating that is capable of removing 99% of contaminants.

While many claims that RO water is not safe to consume due to the slightly acidic, Water Quality Association(WQA) claimed otherwise.

Upon contact with our saliva, the effects of the pH of reverse osmosis water are quickly negated. 

You might be struggling to identify which is the best reverse osmosis system as the membrane is not a proprietary product. Each company will produce their own RO membrane accompanied with varies stage of other filtration media.

DISCLOSURE: We may receive commissions when you click our links and make purchases. However, this does not impact our reviews and comparisons. We try our best to keep things fair and balanced, in order to help you make the best choice for you.

Product Comparison

You might have heard of some of the popular brands such as Apec, iSpring, Aquasana, Home Master and etc. These are some of the trusted household brands in the market.

However, not all filtration system from these brands is reliable and worth buying.

After more than 17 hours of research, we conclude the following 5 reverse osmosis water filter systems that are worth investing.

Home Master TMAFC


Best Reverse Osmosis System

+ Filtration: Remove Up To 98% Contaminants
+ Features: Remineralization twice with pH 7-8.
+ Flow Rate: 50GPD
+ Cost: $$$, $87 Yearly
+ Wastewater: 4 Gallons

iSpring RCC7


Best Budget RO System

+ Filtration: Remove Up To 95% TDS.
+ Features: The only WQA Gold Seal Entry Model Filter.
+ Flow Rate: 75GPD
+ Cost: $$, $50 Yearly
+ Wastewater: 3 Gallons



Best Countertop RO System

+ Filtration: Remove Up To 99% TDS.
+ Features: High Graded FILMTEC RO membrane.
+ Flow Rate: 90GPD
+ Cost: $$$, $70 Yearly
+ Wastewater: 3 Gallons

Home Master TMHP


Best Well Water RO System

+ Filtration: Remove Up To 99% Contaminants including microorganism.
+ Features: Complete system with UV Sterilizer.
+ Flow Rate: 75GPD
+ Cost: $$$$, $150 Yearly
+ Wastewater: 1 Gallons



Best Alkaline RO System

+ Filtration: Remove Up To 99% Contaminants
+ Features: Remineralize naturally up to pH 8-9.
+ Flow Rate: 90GPD
+ Cost: $$$, $85 Yearly
+ Wastewater: 3 Gallons

Detailed Review

Home Master TMAFC

Best Reverse Osmosis System

When it comes to quality, Home Master has one of the best and highly rated RO system in the market. TMAFC is their flagship product which received thousands of great customer reviews.

What’s so great about this system?

Background: Formerly known as Tap Master, this company has been known as one of the most innovative reverse osmosis company in town. All their product is made in the US and is a patented system.

Filtration Capability: The TMAFC is a 4 stage filtration system that includes 2 pre-filters, an RO membrane, and a post remineralization filter. Home Master claims that it is 7 stage filters by using 4 physical cartridges.

The system is capable of removing up to 98% of heavy metals, chemical, chlorine, dissolved solids, and other contaminants.

While most of the RO system stored the slight acidic filtered water in designated storage tanks, the TMAFC will remineralize it with crushed marbles to make it slight alkaline before heading to the storage tank.

The water will pass through the post filter again before reaching the faucet. This patented technology, Full Contact Technology enables water to be remineralized twice within a single filter.

Key Features: There are 4 innovations that made Home Master system stand out from the rest.

  1. Advanced modular filter that removed the need for a filtration housing. It is hygienic and prevents cracks or leaks on the water filter.
  2. Fast Flow RO! Kit that increases the flow rate by 2X with larger tubing.
  3. Push-in tubing for replacement filter. No wrench needed.
  4. Patented Full Contact Technology.

The pH of the water is slightly increased to 7-8 as opposed to normal RO systems which are less than 7. The production rate is expected to be 50 Gallons per day depends on the water pressure, temperature and water conditions.

The TMAFC is tested against NSF standards by an independent laboratory and exceed the expected performance on filtering contaminants.

Home Master backed their RO water filter with a 5 years limited warranty, one of the longest among all the reverse osmosis systems.

Maintenance: All of the filters have a lifespan of at least 1 year while the RO membrane can last for 3 years before a replacement is needed.

The estimated cost per year is $87 over a period of 5 years.

Customer Rating – 4.8 | Our Rating – 4.78


+ Remove up to 98% contaminants in tap water.
+ Double remineralization technology to prevent acidic water entering the storage tank and faucet.
+ Affordable maintenance cost.
+ Long lifespan filters for up to a year.
+ 5 years limited warranty.
+ Design and Manufacture in the US.


Expensive initial cost.
Average daily production rate as compared to the price category.
4 Gallons of waste water for 1 gallon of filtered water.

iSpring RCC7

Best Budget RO System

Looking for an RO system but on a tight budget? The iSpring RCC7 is one of the affordable models that cost less than $200 to own it.

Background: iSpring is one of well-known water treatment company that has been on the market for more than a decade now. They are specialized in under sink, commercial and whole house water filters.

The iSpring RCC7 is one of the best sellers products for under sink reverse osmosis filter which is backed by thousands of positive reviews from its customers.

Filtration Capability: It is a 5 stage filtration system that is packed with a pre-sediment filter, 2 activated carbon pre-filters, an RO membrane filter, and a post-carbon filter.

It claimed by iSpring that the membrane is capable of removing up to 95% total dissolved solids (TDS). In addition, the pre-filters will remove huge sediments such as dust, rust and chlorine odor and smell.

The post filter further making sure that unwanted odor and taste from the storage tanks will be removed before the clean water reaches the faucet.

Below is a list of contaminants that will be filtered.

iSpring RCC7 Rejection Table 1
iSpring RCC7 Rejection Table 2

Key Features: The RCC7 is the only RO system that is under $200 to receive the WQA Gold Seal Award. This is the highest among all certification as the filter needs to go through a rigorous test and examination to prove that it is trustworthy.

Among all the affordable water filter in the market, the RCC7 has the highest daily production rate of 75 gallons per day.

The wastewater ratio is 3:1 which is slightly better than most of the RO system.

The RCC7 is certified against NSF/ANSI standard 58 by WQA.

Maintenance: The lifespan of iSpring filters are way shorter than some of the RO systems. The suggested replacement frequency is about 6 months for the pre-filters, 3 years for the RO membrane and 1 year for the post-filter.

The estimated cost per year is $50 over a period of 5 years.

It is slightly higher than filters like the APEC ROES-50 due to the frequency of replacement. However, the cost is still affordable for an entry model filter.

Customer Rating – 4.8 | Our Rating – 4.6


+ Remove up to 95% TDS in tap water.
+ Affordable system to own in terms of initial and yearly cost.
+ Certified against NSF and WQA Gold Seal Award.
+ High daily production rate of 75 GPD.


Short lifespan filter of 6 months.
Not manufacture in US.
4 Gallons of waste water for 1 gallon of filtered water.
1 year limited warranty.
3:1 waste water


Best Countertop RO System

There is only a handful of countertop reverse osmosis system in the market. The APEC RO CTOP is definitely one of the best in the market. 

Background: APEC has been in the water treatment market close to 2 decades now. They specialize in RO, softeners and whole house filtration systems.

One of their best seller product that was featured on Amazon is the APEC ROES-50 under sink water filter. It received more than 2000 great reviews from its customers.

Filtration Capability: Back to the CTOP model, it is a 4 stage water filter the comes with a pre-sediment filter, activated carbon filter, a high rejection FILMTEC membrane filter and a post-carbon filter.

APEC claims that the high-grade membrane filter is capable of removing up to 99% of TDS such as bacteria, radium, arsenic, fluoride, chromium, lead, and viruses.

The table below shows the list of contaminants that guaranteed to remove by APEC RO CTOP.

APEC RO CTOP Contaminants Removal Table

Key Features: This model has the filtration capability as the top-notch product in APEC. The high daily production rate of 90 GPD made it capable of producing great water almost instantly without a storage tank.

Rest assured on the built quality as the entire filter is manufactured in the US including the individual filters.

Installation is much simpler as compared to all of the recommended RO systems. All you need is to attach the adapter to the faucet and the water filter is ready to produce clean water. No drilling is needed.

For every gallon of filtered water, approximately 3 gallons of wastewater is produced. It is 1 gallon less in wastewater as compared to the majority of the system.

Maintenance: APEC is known for creating great filtration for RO systems. The lifespan of their filter can last for at least a year for pre and post filters and 3 years on the RO membrane.

With the suggested replacement schedule, it is estimated to pay about $70 per year over a 5 years period.

Customer Rating – 4.5 | Our Rating – 4.7


+ Remove up to 99% TDS in tap water.
+ Portable, easy to dismantle and move to a new location.
+ Long lifespan filters.
+ Installation is simple and fast for this model.
+ High daily production rate of 90 GPD.
+ A US-made product


Slightly higher in terms of initial cost.
3 Gallons of waste water for 1 gallon of filtered water.
1 year limited warranty.

Home Master TMHP

Best Well Water RO System

If you need a fully covered RO system, the Home Master TMHP is what we recommend. It was packed with all the features that are available in a water filter. 

Filtration Capability: It is a 5 stage filtration system which consists of a Modular Sediment filter, Iron Filter With catalytic carbon, Ultra Violet Sterilizer filter, RO Membrane, and a Remineralization filter.

Home Mater claim to capable of removing up to 99% sediments, dissolved solids, heavy metals, organic chemical, and VOC. In addition, the UV light will kill any virus, bacteria and living microorganism found in well water source.

Similar to the Home Master TMAFC, it is remineralized once when flows into the storage tank and once in going into the faucet.

Key Features: To combat the low-pressure problem that is often faced by well water homeowners, the system comes with a permeate pump which can increase the incoming water pressure.

The wastewater is reduced to 1 gallon for every gallon of filtered water. It is a 75% saving as compared to the conventional RO system. The daily production rate is set to be 75 gallons per day.

Likewise, this filter comes with a 5-year limited warranty as Home Master stood behind their quality.

Maintenance: As it is a complete system, it doesn’t come cheap in replacement cost. All of the filters can last at least for a year and 3 years for the RO membrane.

According to the suggested replacement schedule, the annual maintenance cost is about $150 in a period of 5 years.

Customer Rating – 4.8 | Our Rating – 4.6


+ Remove up to 99% contaminants and living microorganism.
+ Completed system with UV light sterilizer.
+ 1:1 wastewater.
+ 5 years limited warranty
+ High daily production rate of 75 GPD.


Expensive initial and annual maintenance cost.


Best Alkaline RO System


While most of the system has alkaline features in it, the APEC RO PH-90 is one of our recommended alkaline reverse osmosis water filter. Let’s take a deep dive on what is so great about this water filter.

Filtration Capability: It is a 6 stage filtration system that comes with a 5-micron Sediment filter, twin Premium Extruded Carbon Block filters, a high graded FILMTEC RO membrane filters, an Advanced Coconut Shell Refining Carbon Post Filter and a Calcite Acidic Water Neutralizer.

It is a similar membrane that is used in APEC RO CTOP model, our recommended countertop RO system. It removes 99% of TDS from the tap water which includes fluoride, chromium, arsenic, lead, and bacteria.

The neutralizer filter eventually increases the pH of the water to 8-9 which claims to be optimum for the absorption of our body.

Key Features: It is a high-end model among all APEC system which is capable of producing 90 gallons of filtered water per day. In addition, it comes with a huge 4 gallons storage tank to produce water instantly from the faucet.

The fully American-made water filter reduce the wastewater to 3 gallons for every gallon of pure water that was produced.

All APEC products come with a 1-year limited warranty.

Maintenance: As you might know that APEC produces quality filters that will last longer than average filters. The minimum lifespan is a year for all the cartridge except the RO membrane.

This translate to approximately $85 on the annual maintenance across a period of 5 years.

Customer Rating – 4.7 | Our Rating – 4.6


+ Remove up to 99% TDS.
+ Raise the pH of water to 8-9.
+ Fully American Made Product.
+ High daily production rate of 90 GPD.


Slightly expensive on initial and annual maintenance cost.
3:1 wastewater.
1 year limited waranty.

Wrap Up

Everyone has their own requirement when it comes to picking the best reverse osmosis water filter. The above recommendation reflects our opinion and knowledge towards water treatment products.

It might be hard to decide which type of filtration system should you be taking. Don’t worry. Head over to our drinking water filter guides today and discover which water purifier suits your family’s needs.

In general, there are 7 types of drinking water purifiers system. There must be one which is suitable for your home.

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